HMCL/src/main/java/org/jackhuang/hmcl/ui/instances/ClientSyncProgress.java

@@ -0,0 +1,199 @@
+// SPDX-FileCopyrightText: Copyright (C) 2026 The HMCL Authors
+// SPDX-License-Identifier: GPL-3.0-or-later WITH AdditionRef-HMCL
+package org.jackhuang.hmcl.ui.instances;
+
+import javafx.beans.property.*;
+import org.jackhuang.hmcl.task.FetchTask;
+import org.jackhuang.hmcl.task.FileDownloadTask;
+import org.jackhuang.hmcl.task.Task;
+import org.jackhuang.hmcl.task.TaskExecutor;
+import org.jackhuang.hmcl.task.TaskListener;
+import org.jackhuang.hmcl.ui.FXUtils;
+import org.jackhuang.hmcl.util.TaskManager;
+import org.jackhuang.hmcl.util.i18n.I18n;
+import org.jetbrains.annotations.NotNullByDefault;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.function.Consumer;
+
+/// Observable progress of the home button's "install / update the client, then join" workflow.
+///
+/// The model is only a view of the task executor started by [Instances#ensureClientAndJoin(ClientSyncProgress)]:
+/// it never changes what is downloaded. All properties must be read and written on the JavaFX thread.
+/// Overall percentage is estimated from finished file downloads against the total announced by the sync task, and stays indeterminate until that total is known.
+@NotNullByDefault
+public final class ClientSyncProgress {
+
+    /// Lifecycle of the workflow.
+    public enum State {
+        /// Nothing is running; the home card shows its normal facts and button.
+        IDLE,
+        /// A task is running; the home card shows the progress state.
+        RUNNING,
+        /// The last run failed; the home card shows [#errorProperty()] and a retry button.
+        FAILED
+    }
+
+    /// Index of the step that checks the remote manifest.
+    public static final int STEP_CHECK = 0;
+    /// Index of the step that prepares Java.
+    public static final int STEP_JAVA = 1;
+    /// Index of the step that synchronises the modpack.
+    public static final int STEP_SYNC = 2;
+    /// Index of the final step that joins the server.
+    public static final int STEP_JOIN = 3;
+
+    private final ObjectProperty<State> state = new SimpleObjectProperty<>(this, "state", State.IDLE);
+    /// The first step that is not yet finished; equals 4 once every step is done.
+    private final IntegerProperty step = new SimpleIntegerProperty(this, "step", STEP_CHECK);
+    /// Fraction in `[0, 1]`, or `-1` while unknown.
+    private final DoubleProperty progress = new SimpleDoubleProperty(this, "progress", -1);
+    private final StringProperty detail = new SimpleStringProperty(this, "detail", "");
+    private final StringProperty error = new SimpleStringProperty(this, "error", "");
+
+    private @Nullable TaskExecutor executor;
+    private long downloadedBytes;
+    /// Total number of downloads announced by tasks so far.
+    private int expectedFiles;
+    /// Number of finished file downloads.
+    private int finishedFiles;
+    /// Tasks whose `total` has already been added to [#expectedFiles].
+    private final java.util.Set<Task<?>> announcedTasks = java.util.Collections.newSetFromMap(new java.util.IdentityHashMap<>());
+    private boolean cancelled;
+
+    /// Keeps the weakly registered speed listener alive.
+    @SuppressWarnings({"unused", "FieldCanBeLocal"})
+    private final Consumer<FetchTask.SpeedEvent> speedHandler;
+
+    /// Creates an idle progress model.
+    public ClientSyncProgress() {
+        speedHandler = FetchTask.SPEED_EVENT.registerWeak(event -> FXUtils.runInFX(() -> {
+            if (state.get() != State.RUNNING || event.getSpeed() <= 0)
+                return;
+            downloadedBytes += event.getSpeed();
+            detail.set(String.format("%.0f MB", downloadedBytes / 1048576.0) + " · " + I18n.formatSpeed(event.getSpeed()));
+        }));
+    }
+
+    /// The workflow state.
+    public ReadOnlyObjectProperty<State> stateProperty() {
+        return state;
+    }
+
+    /// The first unfinished step index (0–3), or 4 when everything is done.
+    public ReadOnlyIntegerProperty stepProperty() {
+        return step;
+    }
+
+    /// Overall fraction in `[0, 1]`, or `-1` when it cannot be estimated yet.
+    public ReadOnlyDoubleProperty progressProperty() {
+        return progress;
+    }
+
+    /// Transfer details such as downloaded size and speed; empty when unknown.
+    public ReadOnlyStringProperty detailProperty() {
+        return detail;
+    }
+
+    /// The failure message of the last run; empty unless the state is [State#FAILED].
+    public ReadOnlyStringProperty errorProperty() {
+        return error;
+    }
+
+    /// Starts a new run: resets counters and shows the progress state at the first step.
+    void begin() {
+        executor = null;
+        cancelled = false;
+        downloadedBytes = 0;
+        expectedFiles = 0;
+        finishedFiles = 0;
+        announcedTasks.clear();
+        progress.set(-1);
+        detail.set("");
+        error.set("");
+        step.set(STEP_CHECK);
+        state.set(State.RUNNING);
+    }
+
+    /// Moves the indicator forward to `newStep`; it never moves backwards.
+    void advanceTo(int newStep) {
+        if (newStep > step.get())
+            step.set(newStep);
+    }
+
+    /// Returns to the idle state, for example after the game was launched or the run was cancelled.
+    void finish() {
+        executor = null;
+        state.set(State.IDLE);
+    }
+
+    /// Shows `message` in the card together with the retry button.
+    void fail(String message) {
+        executor = null;
+        error.set(message);
+        state.set(State.FAILED);
+    }
+
+    /// Dismisses a failure and returns to the idle state.
+    public void dismiss() {
+        if (state.get() == State.FAILED)
+            state.set(State.IDLE);
+    }
+
+    /// Cancels the running task, if any, and returns to the idle state.
+    public void cancel() {
+        TaskExecutor current = executor;
+        cancelled = true;
+        if (current != null)
+            current.cancel();
+        finish();
+    }
+
+    /// Returns whether the last run was cancelled by the user.
+    boolean isCancelled() {
+        return cancelled;
+    }
+
+    /// Recomputes the fraction from finished downloads; stays indeterminate until a total is known.
+    private void refreshProgress(TaskExecutor current) {
+        if (executor != current || expectedFiles <= 0)
+            return;
+        double value = Math.min(0.99, (double) finishedFiles / expectedFiles);
+        if (value > progress.get())
+            progress.set(value);
+    }
+
+    /// Submits `task` to the serial task queue and mirrors its task count into the progress.
+    ///
+    /// @param task the task to run
+    void submit(Task<?> task) {
+        TaskExecutor taskExecutor = task.executor();
+        executor = taskExecutor;
+        taskExecutor.addTaskListener(new TaskListener() {
+            /// Tasks announce how many downloads they will start through the `total` property
+            /// (set once the file list is known), so the denominator never grows with discovered tasks.
+            @Override
+            public void onPropertiesUpdate(Task<?> updated) {
+                Object total = updated.getProperties().get("total");
+                if (total instanceof Integer count && count > 0) {
+                    FXUtils.runInFX(() -> {
+                        if (announcedTasks.add(updated))
+                            expectedFiles += count;
+                        refreshProgress(taskExecutor);
+                    });
+                }
+            }
+
+            @Override
+            public void onFinished(Task<?> finishedTask) {
+                if (finishedTask instanceof FileDownloadTask) {
+                    FXUtils.runInFX(() -> {
+                        finishedFiles++;
+                        refreshProgress(taskExecutor);
+                    });
+                }
+            }
+        });
+        TaskManager.getInstance().submit(taskExecutor, null);
+    }
+}

HMCL/src/main/java/org/jackhuang/hmcl/ui/instances/Instances.java

@@ -100,6 +100,14 @@ public final class Instances {
     /// Prefer this for the home Start / Join button. Existing server-modpack instances get differential
     /// updates during launch via [org.jackhuang.hmcl.modpack.server.ServerModpackCompletionTask].
     public static void ensureClientAndJoin() {
+        ensureClientAndJoin(null);
+    }
+
+    /// Same as [#ensureClientAndJoin()], but reports task progress to `progress` instead of opening a
+    /// task dialog, so the home card can show it in place. Errors are shown through `progress` too.
+    ///
+    /// @param progress the progress model to drive, or `null` to use the task dialog
+    public static void ensureClientAndJoin(@Nullable ClientSyncProgress progress) {
         HMCLGameRepository repository = GameDirectoryManager.getSelectedRepository();
         if (!repository.isLoaded()) {
             return;
@@ -113,33 +121,68 @@ public final class Instances {
 
         Path bundled = Metadata.findBundledModpackFile();
         if (bundled != null) {
-            installBundledThenJoin(repository, bundled);
+            installBundledThenJoin(repository, bundled, progress);
             return;
         }
 
-        Controllers.taskDialog(
-                new GetTask(WebURL.parse(Metadata.getClientManifestUrl()))
-                        .thenComposeAsync(Schedulers.javafx(), result -> {
-                            ServerModpackManifest manifest = JsonUtils.fromMaybeMalformedJson(
-                                    result, ServerModpackManifest.class);
-                            if (manifest == null) {
-                                throw new IOException(i18n("modpack.type.server.malformed"));
-                            }
-                            return ensureRemoteClientInstalled(repository, manifest);
-                        })
-                        .whenComplete(Schedulers.javafx(), (ignored, exception) -> {
-                            if (exception != null) {
-                                LOG.warning("Failed to install or update TDLM client", exception);
-                                Controllers.dialog(
-                                        StringUtils.getStackTrace(exception),
-                                        i18n("install.failed"),
-                                        MessageDialogPane.MessageType.ERROR);
-                                return;
-                            }
-                            joinServer(GameDirectoryManager.getSelectedRepository().getSelectedInstance());
-                        }),
-                i18n("modpack.installing"),
-                TaskCancellationAction.NORMAL);
+        if (progress != null) {
+            progress.begin();
+        }
+        Task<?> task = new GetTask(WebURL.parse(Metadata.getClientManifestUrl()))
+                .thenComposeAsync(Schedulers.javafx(), result -> {
+                    ServerModpackManifest manifest = JsonUtils.fromMaybeMalformedJson(
+                            result, ServerModpackManifest.class);
+                    if (manifest == null) {
+                        throw new IOException(i18n("modpack.type.server.malformed"));
+                    }
+                    if (progress != null) {
+                        // Java is prepared by the launch step; mark it as passed once the manifest is known.
+                        progress.advanceTo(ClientSyncProgress.STEP_SYNC);
+                    }
+                    return ensureRemoteClientInstalled(repository, manifest);
+                })
+                .whenComplete(Schedulers.javafx(), (ignored, exception) -> {
+                    if (exception != null) {
+                        LOG.warning("Failed to install or update TDLM client", exception);
+                        reportFailure(progress, exception);
+                        return;
+                    }
+                    if (progress != null) {
+                        progress.advanceTo(ClientSyncProgress.STEP_JOIN);
+                    }
+                    joinServer(GameDirectoryManager.getSelectedRepository().getSelectedInstance());
+                    if (progress != null) {
+                        progress.advanceTo(ClientSyncProgress.STEP_JOIN + 1);
+                        progress.finish();
+                    }
+                });
+        runSyncTask(task, progress, TaskCancellationAction.NORMAL);
+    }
+
+    /// Runs `task` in the progress card when `progress` is set, otherwise in the task dialog.
+    private static void runSyncTask(Task<?> task, @Nullable ClientSyncProgress progress, TaskCancellationAction cancellation) {
+        if (progress != null) {
+            progress.submit(task);
+        } else {
+            Controllers.taskDialog(task, i18n("modpack.installing"), cancellation);
+        }
+    }
+
+    /// Shows a failure in the progress card, or in an error dialog when there is no card.
+    /// A user-requested cancellation is not reported as an error.
+    private static void reportFailure(@Nullable ClientSyncProgress progress, Throwable exception) {
+        if (progress != null) {
+            if (progress.isCancelled()) {
+                progress.finish();
+            } else {
+                progress.fail(StringUtils.getStackTrace(exception));
+            }
+            return;
+        }
+        Controllers.dialog(
+                StringUtils.getStackTrace(exception),
+                i18n("install.failed"),
+                MessageDialogPane.MessageType.ERROR);
     }
 
     /// Silent first-install / update from the org client manifest — no wizard UI.
@@ -191,9 +234,12 @@ public final class Instances {
                 TaskCancellationAction.NORMAL);
     }
 
-    private static void installBundledThenJoin(HMCLGameRepository repository, Path bundled) {
-        Controllers.taskDialog(
-                Task.composeAsync(Schedulers.io(), () -> {
+    private static void installBundledThenJoin(HMCLGameRepository repository, Path bundled, @Nullable ClientSyncProgress progress) {
+        if (progress != null) {
+            progress.begin();
+            progress.advanceTo(ClientSyncProgress.STEP_SYNC);
+        }
+        Task<?> task = Task.composeAsync(Schedulers.io(), () -> {
                             Modpack modpack = ModpackHelper.readModpackManifest(bundled);
                             String name = LocalModpackPage.processModpackName(modpack.getName());
                             if (StringUtils.isBlank(name)) {
@@ -213,16 +259,16 @@ public final class Instances {
                         .whenComplete(Schedulers.javafx(), (ignored, exception) -> {
                             if (exception != null) {
                                 LOG.warning("Failed to install bundled modpack", exception);
-                                Controllers.dialog(
-                                        StringUtils.getStackTrace(exception),
-                                        i18n("install.failed"),
-                                        MessageDialogPane.MessageType.ERROR);
+                                reportFailure(progress, exception);
                                 return;
                             }
                             joinServer(GameDirectoryManager.getSelectedRepository().getSelectedInstance());
-                        }),
-                i18n("modpack.installing"),
-                TaskCancellationAction.NO_CANCEL);
+                            if (progress != null) {
+                                progress.advanceTo(ClientSyncProgress.STEP_JOIN + 1);
+                                progress.finish();
+                            }
+                        });
+        runSyncTask(task, progress, TaskCancellationAction.NO_CANCEL);
     }
 
     /// Installs when missing; selects an existing instance otherwise.

HMCL/src/main/java/org/jackhuang/hmcl/ui/main/AboutPage.java

@@ -3,11 +3,18 @@
 package org.jackhuang.hmcl.ui.main;
 
 import com.google.gson.*;
+import com.jfoenix.controls.JFXButton;
+import javafx.geometry.Insets;
 import javafx.scene.control.ScrollPane;
 import javafx.scene.image.Image;
 import javafx.scene.layout.VBox;
 import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.game.HMCLGameInstance;
+import org.jackhuang.hmcl.setting.GameDirectoryManager;
+import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.theme.Themes;
+import org.jackhuang.hmcl.ui.Controllers;
+import org.jackhuang.hmcl.ui.instances.Instances;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.SVG;
 import org.jackhuang.hmcl.ui.WeakListenerHolder;
@@ -20,7 +27,6 @@ import org.jackhuang.hmcl.util.platform.SystemInfo;
 import org.jackhuang.hmcl.util.platform.hardware.CentralProcessor;
 import org.jackhuang.hmcl.util.platform.hardware.DeviceInfo;
 import org.jackhuang.hmcl.util.platform.hardware.GraphicsCard;
-import org.jackhuang.hmcl.util.platform.hardware.PageFileConfiguration;
 import org.jetbrains.annotations.NotNullByDefault;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.annotations.Unmodifiable;
@@ -34,16 +40,22 @@ import static org.jackhuang.hmcl.util.i18n.I18n.getTranslator;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 import static org.jackhuang.hmcl.util.logging.Logger.LOG;
 
-/// Displays launcher, system, device, runtime, and project information.
+/// Displays a compact about page: identity, update check, licenses, source link and diagnostics.
+///
+/// System, device and runtime details are not listed; they are collected by "Copy diagnostics".
 @NotNullByDefault
 public final class AboutPage extends SpinnerPane {
 
+    /// The upstream project that this launcher is based on, and the source of its GPL-licensed code.
+    private static final String SOURCE_URL = "https://github.com/HMCL-dev/HMCL";
+
     /// Keeps theme listeners alive while the page is visible.
     private final WeakListenerHolder holder = new WeakListenerHolder();
 
-    /// Builds the page from cached hardware information and bundled project lists.
+    /// Builds the page from bundled project lists.
     public AboutPage() {
-        VBox content = new VBox();
+        VBox content = new VBox(13);
+        content.setPadding(new Insets(21));
         content.getStyleClass().add("spinner-pane-content");
         ScrollPane scrollPane = new ScrollPane(content);
         scrollPane.setFitToWidth(true);
@@ -56,196 +68,112 @@ public final class AboutPage extends SpinnerPane {
             launcher.setLargeTitle(true);
             launcher.setLeading(FXUtils.newBuiltinImage("/assets/img/icon.png"));
             launcher.setTitle(Metadata.FULL_NAME);
-            launcher.setSubtitle(Metadata.VERSION);
+            launcher.setSubtitle(Metadata.VERSION + " · " + i18n("about.based_on"));
+
+            JFXButton checkUpdate = FXUtils.newBorderButton(i18n("about.check_update"));
+            checkUpdate.setOnAction(e -> checkClientUpdate(checkUpdate));
+            launcher.setRight(checkUpdate);
 
             about.getContent().setAll(launcher);
         }
 
-        ComponentList systemInfo = new ComponentList();
-        {
-            var system = new LinePane();
-            system.setLargeTitle(true);
-            system.setLeading(SVG.LUCIDE_APP_WINDOW.createIcon(32));
-            system.setTitle(i18n("about.system.os"));
-            system.setSubtitle((OperatingSystem.OS_RELEASE_PRETTY_NAME == null
-                    ? "%s %s".formatted(OperatingSystem.SYSTEM_NAME, OperatingSystem.SYSTEM_VERSION.getVersion())
-                    : "%s (%s %s)".formatted(OperatingSystem.OS_RELEASE_PRETTY_NAME, OperatingSystem.SYSTEM_NAME, OperatingSystem.SYSTEM_VERSION.getVersion())));
-            systemInfo.getContent().add(system);
-
-            if (OperatingSystem.CURRENT_OS.isLinuxOrBSD() && SystemInfo.getDesktopEnvironment() != null) {
-                var desktop = new LinePane();
-                desktop.setLargeTitle(true);
-                desktop.setLeading(SVG.LUCIDE_PANELS_TOP_LEFT.createIcon(32));
-                desktop.setTitle(i18n("about.system.desktop"));
-                desktop.setSubtitle(SystemInfo.getDesktopEnvironment());
-                systemInfo.getContent().add(desktop);
-            }
-        }
-
-        ComponentList deviceInfo = new ComponentList();
-        {
-            @Nullable DeviceInfo deviceIdentity = SystemInfo.getDeviceInfo();
-            if (deviceIdentity != null
-                    && !"Virtual Machine".equals(deviceIdentity.name())
-                    && OperatingSystem.CURRENT_OS != OperatingSystem.WINDOWS
-                    && (OperatingSystem.CURRENT_OS == OperatingSystem.MACOS || !Architecture.SYSTEM_ARCH.isX86())) {
-                var device = new LinePane();
-                device.setLargeTitle(true);
-                device.setLeading(SVG.HOST.createIcon(32));
-                device.setTitle(i18n("about.device.model"));
-                device.setSubtitle(getTranslator().formatDeviceName(deviceIdentity));
-                deviceInfo.getContent().add(device);
-            }
-
-            @Unmodifiable List<CentralProcessor> processors = SystemInfo.getCentralProcessors();
-            for (int i = 0; i < processors.size(); i++) {
-                String title = processors.size() == 1
-                        ? i18n("about.device.cpu")
-                        : i18n("about.device.cpu.n", i + 1);
-                CentralProcessor processor = processors.get(i);
-                String name = processor.getName();
-                @Nullable CentralProcessor.Cores cores = processor.getCores();
-                String subtitle;
-                if (cores == null)
-                    subtitle = i18n("about.device.cpu.name", name);
-                else if (cores.efficiency() > 0) {
-                    subtitle = cores.logical() == cores.physical()
-                            ? i18n("about.device.cpu.name.cores.hybrid", name, cores.performance(), cores.efficiency())
-                            : i18n("about.device.cpu.name.cores.hybrid.threads", name, cores.performance(), cores.efficiency(), cores.logical());
-                } else {
-                    subtitle = cores.logical() == cores.physical()
-                            ? i18n("about.device.cpu.name.cores", name, cores.physical())
-                            : i18n("about.device.cpu.name.cores.threads", name, cores.physical(), cores.logical());
-                }
-
-                var pane = new LinePane();
-                pane.setLargeTitle(true);
-                pane.setTitle(title);
-                pane.setSubtitle(subtitle);
-                pane.setLeading(SVG.LUCIDE_CPU.createIcon(32));
-                pane.getTags().add(new Tag(Architecture.SYSTEM_ARCH.getDisplayName()));
-                deviceInfo.getContent().add(pane);
-            }
-
-            @Unmodifiable List<GraphicsCard> visibleGraphicsCards = SystemInfo.getGraphicsCards().stream()
-                    .filter(card -> card.getType() != GraphicsCard.Type.DISPLAY_ONLY && !"Unknown".equals(card.getName()))
-                    .sorted(Comparator.comparing(GraphicsCard::getType))
-                    .toList();
-
-            for (int i = 0; i < visibleGraphicsCards.size(); i++) {
-                GraphicsCard graphicsCard = visibleGraphicsCards.get(i);
-
-                String title = visibleGraphicsCards.size() == 1
-                        ? i18n("about.device.gpu")
-                        : i18n("about.device.gpu.n", i + 1);
-
-                var button = new LinePane();
-                button.setLargeTitle(true);
-                button.setLeading(SVG.LUCIDE_GPU.createIcon(32));
-                button.setTitle(title);
-
-                StringBuilder subtitle = new StringBuilder(graphicsCard.getName());
-
-                if (graphicsCard.getDriver() != null || graphicsCard.getDriverVersion() != null) {
-                    subtitle.append(" (");
-                    if (graphicsCard.getDriver() != null) {
-                        subtitle.append(graphicsCard.getDriver());
-                        if (graphicsCard.getDriverVersion() != null) {
-                            subtitle.append(' ');
-                        }
-                    }
-                    if (graphicsCard.getDriverVersion() != null) {
-                        subtitle.append(graphicsCard.getDriverVersion());
-                    }
-                    subtitle.append(')');
-                }
-
-                button.setSubtitle(subtitle.toString());
-
-                switch (graphicsCard.getType()) {
-                    case INTEGRATED -> button.getTags().add(new Tag(i18n("about.device.gpu.type.integrated")));
-                    case DISCRETE -> button.getTags().add(new Tag(i18n("about.device.gpu.type.discrete")));
-                    case VIRTUAL -> button.getTags().add(new Tag(i18n("about.device.gpu.type.virtual")));
-                }
-
-                deviceInfo.getContent().add(button);
-            }
-
-            if (SystemInfo.getTotalMemorySize() > 0) {
-                String subtitle = i18n("about.device.memory.system",
-                        "%.1f GiB".formatted(DataSizeUnit.GIGABYTES.convertFromBytes(SystemInfo.getTotalMemorySize())));
-                if (OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS) {
-                    long pageFileSize = SystemInfo.getTotalPageFileSize();
-                    if (pageFileSize < 0) {
-                        subtitle = i18n("about.device.memory.page_files.unknown", subtitle);
-                    } else {
-                        String pageFileCapacity = "%.1f GiB".formatted(DataSizeUnit.GIGABYTES.convertFromBytes(pageFileSize));
-                        PageFileConfiguration configuration = SystemInfo.getPageFileConfiguration();
-                        subtitle = switch (configuration.mode()) {
-                            case MANUAL -> i18n("about.device.memory.page_files.maximum",
-                                    subtitle,
-                                    pageFileCapacity,
-                                    "%.1f GiB".formatted(DataSizeUnit.GIGABYTES.convertFromBytes(configuration.maximumSize())));
-                            case SYSTEM_MANAGED, MIXED, UNKNOWN -> i18n("about.device.memory.page_files", subtitle, pageFileCapacity);
-                        };
-                    }
-                }
-
-                var memory = new LinePane();
-                memory.setLargeTitle(true);
-                memory.setLeading(SVG.LUCIDE_MEMORY_STICK.createIcon(32));
-                memory.setTitle(i18n("about.device.memory"));
-                memory.setSubtitle(subtitle);
-                deviceInfo.getContent().add(memory);
-            }
-        }
-
-        ComponentList runtimeInfo = new ComponentList();
-        {
-            var java = new LinePane();
-            java.setLargeTitle(true);
-            java.setLeading(SVG.LOCAL_CAFE.createIcon(32));
-            java.setTitle("Java");
-            java.setSubtitle("%s, %s, %s".formatted(
-                    Runtime.version().toString(),
-                    System.getProperty("java.vm.name"),
-                    System.getProperty("java.vendor")));
-            runtimeInfo.getContent().add(java);
-
-            var javaFX = new LinePane();
-            javaFX.setLargeTitle(true);
-            javaFX.setLeading(SVG.LOCAL_CAFE.createIcon(32));
-            javaFX.setTitle("JavaFX");
-            javaFX.setSubtitle(System.getProperty("javafx.runtime.version"));
-            runtimeInfo.getContent().add(javaFX);
-        }
-
-        ComponentList deps = loadIconedTwoLineList("/assets/about/deps.json");
-
+        // The HMCL GPLv3 notice and the third-party dependency list must stay reachable.
         ComponentList legal = new ComponentList();
         {
-            var copyright = new LinePane();
-            copyright.setLargeTitle(true);
-            copyright.setTitle(i18n("about.copyright"));
-            copyright.setSubtitle(i18n("about.copyright.statement"));
+            var license = new LinePane();
+            license.setLargeTitle(true);
+            license.setTitle(i18n("about.open_source"));
+            license.setSubtitle(i18n("about.open_source.statement") + "\n" + i18n("about.copyright.statement"));
+            legal.getContent().add(license);
 
-            legal.getContent().setAll(copyright);
+            var source = new LineButton();
+            source.setLargeTitle(true);
+            source.setTitle(i18n("about.source_code"));
+            source.setSubtitle(SOURCE_URL);
+            source.setTrailingIcon(SVG.OPEN_IN_NEW);
+            source.setOnAction(e -> FXUtils.openLink(SOURCE_URL));
+            legal.getContent().add(source);
+
+            ComponentList deps = loadIconedTwoLineList("/assets/about/deps.json");
+            var depsSublist = new ComponentSublist(() -> List.of(deps));
+            depsSublist.setTitle(i18n("about.dependency"));
+            legal.getContent().add(depsSublist);
         }
 
-        content.getChildren().setAll(
-                ComponentList.createComponentListTitle(i18n("about")),
-                about,
-                ComponentList.createComponentListTitle(i18n("about.system")),
-                systemInfo,
-                ComponentList.createComponentListTitle(i18n("about.device")),
-                deviceInfo,
-                ComponentList.createComponentListTitle(i18n("about.runtime")),
-                runtimeInfo,
-                ComponentList.createComponentListTitle(i18n("about.dependency")),
-                deps,
-                ComponentList.createComponentListTitle(i18n("about.legal")),
-                legal
-        );
+        ComponentList support = new ComponentList();
+        {
+            var diagnostics = new LineButton();
+            diagnostics.setLargeTitle(true);
+            diagnostics.setTitle(i18n("about.copy_diagnostics"));
+            diagnostics.setTrailingIcon(SVG.CONTENT_COPY);
+            diagnostics.setOnAction(e -> FXUtils.copyText(buildDiagnostics()));
+            support.getContent().add(diagnostics);
+        }
+
+        content.getChildren().setAll(about, legal, support);
+    }
+
+    /// Checks whether the installed client pack is behind the remote manifest and tells the user.
+    ///
+    /// @param button the button to disable while the check runs
+    private static void checkClientUpdate(JFXButton button) {
+        HMCLGameInstance instance = GameDirectoryManager.getSelectedRepository().getSelectedInstance();
+        if (instance == null) {
+            Controllers.showToast(i18n("about.check_update.not_installed"));
+            return;
+        }
+        button.setDisable(true);
+        Schedulers.io().execute(() -> {
+            boolean available = Instances.isClientUpdateAvailable(instance);
+            FXUtils.runInFX(() -> {
+                button.setDisable(false);
+                Controllers.showToast(i18n(available ? "about.check_update.available" : "about.check_update.latest"));
+            });
+        });
+    }
+
+    /// Collects launcher, system, device and runtime information as plain text for bug reports.
+    private static String buildDiagnostics() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(Metadata.FULL_NAME).append(' ').append(Metadata.VERSION).append('\n');
+        sb.append("OS: ").append(OperatingSystem.OS_RELEASE_PRETTY_NAME == null
+                ? "%s %s".formatted(OperatingSystem.SYSTEM_NAME, OperatingSystem.SYSTEM_VERSION.getVersion())
+                : "%s (%s %s)".formatted(OperatingSystem.OS_RELEASE_PRETTY_NAME, OperatingSystem.SYSTEM_NAME, OperatingSystem.SYSTEM_VERSION.getVersion()))
+                .append(" (").append(Architecture.SYSTEM_ARCH.getDisplayName()).append(")\n");
+        if (OperatingSystem.CURRENT_OS.isLinuxOrBSD() && SystemInfo.getDesktopEnvironment() != null)
+            sb.append("Desktop: ").append(SystemInfo.getDesktopEnvironment()).append('\n');
+
+        @Nullable DeviceInfo deviceIdentity = SystemInfo.getDeviceInfo();
+        if (deviceIdentity != null && !"Virtual Machine".equals(deviceIdentity.name()))
+            sb.append("Device: ").append(getTranslator().formatDeviceName(deviceIdentity)).append('\n');
+
+        for (CentralProcessor processor : SystemInfo.getCentralProcessors())
+            sb.append("CPU: ").append(processor.getName()).append('\n');
+
+        @Unmodifiable List<GraphicsCard> cards = SystemInfo.getGraphicsCards().stream()
+                .filter(card -> card.getType() != GraphicsCard.Type.DISPLAY_ONLY && !"Unknown".equals(card.getName()))
+                .sorted(Comparator.comparing(GraphicsCard::getType))
+                .toList();
+        for (GraphicsCard card : cards) {
+            sb.append("GPU: ").append(card.getName());
+            if (card.getDriver() != null || card.getDriverVersion() != null) {
+                sb.append(" (");
+                if (card.getDriver() != null)
+                    sb.append(card.getDriver());
+                if (card.getDriverVersion() != null)
+                    sb.append(card.getDriver() != null ? " " : "").append(card.getDriverVersion());
+                sb.append(')');
+            }
+            sb.append('\n');
+        }
+
+        if (SystemInfo.getTotalMemorySize() > 0)
+            sb.append("Memory: %.1f GiB%n".formatted(DataSizeUnit.GIGABYTES.convertFromBytes(SystemInfo.getTotalMemorySize())));
+
+        sb.append("Java: %s, %s, %s%n".formatted(
+                Runtime.version(), System.getProperty("java.vm.name"), System.getProperty("java.vendor")));
+        sb.append("JavaFX: ").append(System.getProperty("javafx.runtime.version")).append('\n');
+        return sb.toString();
     }
 
     private static Image loadImage(String url) {

HMCL/src/main/java/org/jackhuang/hmcl/ui/main/LauncherSettingsPage.java

@@ -4,60 +4,21 @@ package org.jackhuang.hmcl.ui.main;
 
 import javafx.beans.property.ReadOnlyObjectProperty;
 import javafx.beans.property.ReadOnlyObjectWrapper;
-import org.jackhuang.hmcl.ui.SVG;
-import org.jackhuang.hmcl.ui.animation.TransitionPane;
-import org.jackhuang.hmcl.ui.construct.*;
-import org.jackhuang.hmcl.ui.decorator.DecoratorAnimatedPage;
+import javafx.scene.layout.StackPane;
 import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
-
+import org.jetbrains.annotations.NotNullByDefault;
 
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 
-public class LauncherSettingsPage extends DecoratorAnimatedPage implements DecoratorPage, PageAware {
+/// The launcher settings destination: a single [SettingsPage] without sidebar tabs.
+@NotNullByDefault
+public class LauncherSettingsPage extends StackPane implements DecoratorPage {
+    /// The page state holding the "Settings" title.
     private final ReadOnlyObjectWrapper<State> state = new ReadOnlyObjectWrapper<>(State.fromTitle(i18n("settings")));
-    /// Manages tab selection and content transitions independently of the sidebar.
-    private final TabController tabController;
-    /// The tab whose content manages installed Java runtimes.
-    private final TabItem<JavaManagementPage> javaManagementTab;
-    /// The tab for general launcher settings.
-    private final TabItem<SettingsPage> settingsTab;
-    /// The tab for download settings.
-    private final TabItem<DownloadSettingsPage> downloadTab;
-    /// The tab displaying launcher information.
-    private final TabItem<AboutPage> aboutTab;
-    private final TransitionPane transitionPane = new TransitionPane();
 
-    /// Creates the settings tabs and fills the shared navigation sidebar.
+    /// Creates the page with the single settings view.
     public LauncherSettingsPage() {
-        javaManagementTab = new TabItem<>(JavaManagementPage::new);
-        settingsTab = new TabItem<>(SettingsPage::new);
-        downloadTab = new TabItem<>(DownloadSettingsPage::new);
-        aboutTab = new TabItem<>(AboutPage::new);
-        tabController = new TabController(transitionPane,
-                javaManagementTab,
-                settingsTab,
-                downloadTab,
-                aboutTab);
-
-        tabController.selectTab(settingsTab);
-
-        getSidebar()
-                .addNavigationDrawerTab(tabController, javaManagementTab, i18n("java.management"), SVG.LOCAL_CAFE, SVG.LOCAL_CAFE_FILL)
-                .addNavigationDrawerTab(tabController, settingsTab, i18n("settings.launcher.general"), SVG.TUNE)
-                .addNavigationDrawerTab(tabController, downloadTab, i18n("download"), SVG.DOWNLOAD)
-                .addNavigationDrawerTab(tabController, aboutTab, i18n("about"), SVG.INFO, SVG.INFO_FILL);
-
-        setContent(transitionPane);
-    }
-
-    @Override
-    public void onPageShown() {
-        tabController.onPageShown();
-    }
-
-    @Override
-    public void onPageHidden() {
-        tabController.onPageHidden();
+        getChildren().setAll(new SettingsPage());
     }
 
     @Override

HMCL/src/main/java/org/jackhuang/hmcl/ui/main/MainPage.java

@@ -6,6 +6,7 @@ import com.jfoenix.controls.JFXButton;
 import com.jfoenix.controls.JFXPopup;
 import javafx.beans.property.*;
 import javafx.beans.value.ObservableValue;
+import javafx.css.PseudoClass;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.geometry.Insets;
@@ -13,6 +14,7 @@ import javafx.geometry.Pos;
 import javafx.scene.Cursor;
 import javafx.scene.Node;
 import javafx.scene.control.Label;
+import javafx.scene.control.ProgressBar;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.Priority;
 import javafx.scene.layout.Region;
@@ -26,6 +28,7 @@ import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.construct.IconedMenuItem;
 import org.jackhuang.hmcl.ui.construct.PopupMenu;
 import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
+import org.jackhuang.hmcl.ui.instances.ClientSyncProgress;
 import org.jackhuang.hmcl.ui.instances.Instances;
 import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.util.ServerAddress;
@@ -61,6 +64,9 @@ public final class MainPage extends StackPane implements DecoratorPage {
     /// Bumped when the home join button starts a new remote-update check, so stale results are ignored.
     private int updateCheckGeneration;
 
+    /// Progress of the install / update workflow, shown in place of the home card while it runs.
+    private final ClientSyncProgress syncProgress = new ClientSyncProgress();
+
     {
         HBox titleNode = new HBox(8);
         titleNode.setPadding(new Insets(0, 0, 0, 2));
@@ -195,7 +201,103 @@ public final class MainPage extends StackPane implements DecoratorPage {
             }
         });
 
-        getChildren().addAll(art, hero, bottom);
+        // While the client is installed or updated the card turns into a progress view in place.
+        VBox progressCard = createProgressCard();
+        StackPane.setAlignment(progressCard, Pos.BOTTOM_CENTER);
+        progressCard.setMaxHeight(Region.USE_PREF_SIZE);
+        progressCard.visibleProperty().bind(syncProgress.stateProperty().isNotEqualTo(ClientSyncProgress.State.IDLE));
+        progressCard.managedProperty().bind(progressCard.visibleProperty());
+        // The whole bottom block (announcement + card) gives way to the progress card.
+        bottom.visibleProperty().bind(progressCard.visibleProperty().not());
+        bottom.managedProperty().bind(bottom.visibleProperty());
+
+        getChildren().addAll(art, hero, bottom, progressCard);
+    }
+
+    /// Builds the progress state of the home card: title with percentage, a thin progress bar,
+    /// transfer details, a cancel / retry button and the four-step indicator.
+    private VBox createProgressCard() {
+        Label title = new Label();
+        title.getStyleClass().add("home-progress-title");
+        ProgressBar bar = new ProgressBar();
+        bar.getStyleClass().add("home-progress-bar");
+        bar.setMaxWidth(Double.MAX_VALUE);
+        bar.progressProperty().bind(syncProgress.progressProperty());
+        Label detail = new Label();
+        detail.getStyleClass().add("home-fact-label");
+        detail.textProperty().bind(syncProgress.detailProperty());
+        Label error = new Label();
+        error.getStyleClass().add("home-progress-error");
+        error.setWrapText(true);
+        error.setMaxHeight(55);
+        error.textProperty().bind(syncProgress.errorProperty());
+
+        VBox status = new VBox(8, title, bar, detail, error);
+        status.setAlignment(Pos.CENTER_LEFT);
+        HBox.setHgrow(status, Priority.ALWAYS);
+
+        JFXButton action = new JFXButton();
+        action.getStyleClass().add("home-progress-button");
+        action.setOnAction(e -> {
+            if (syncProgress.stateProperty().get() == ClientSyncProgress.State.FAILED) {
+                Instances.ensureClientAndJoin(syncProgress);
+            } else {
+                syncProgress.cancel();
+            }
+        });
+        // A failed run can also be dismissed to get back to the normal card.
+        JFXButton dismiss = new JFXButton(i18n("button.cancel"));
+        dismiss.getStyleClass().add("home-progress-button");
+        dismiss.setOnAction(e -> syncProgress.dismiss());
+        dismiss.visibleProperty().bind(syncProgress.stateProperty().isEqualTo(ClientSyncProgress.State.FAILED));
+        dismiss.managedProperty().bind(dismiss.visibleProperty());
+
+        HBox top = new HBox(21, status, new HBox(8, dismiss, action));
+        top.setAlignment(Pos.CENTER_LEFT);
+
+        String[] stepKeys = {"home.progress.step.check", "home.progress.step.java", "home.progress.step.sync", "home.progress.step.join"};
+        HBox steps = new HBox(21);
+        Label[] stepLabels = new Label[stepKeys.length];
+        for (int i = 0; i < stepKeys.length; i++) {
+            stepLabels[i] = new Label();
+            stepLabels[i].getStyleClass().add("home-progress-step");
+            steps.getChildren().add(stepLabels[i]);
+        }
+
+        Runnable refresh = () -> {
+            ClientSyncProgress.State state = syncProgress.stateProperty().get();
+            boolean failed = state == ClientSyncProgress.State.FAILED;
+            int current = syncProgress.stepProperty().get();
+            for (int i = 0; i < stepKeys.length; i++) {
+                boolean done = i < current;
+                boolean active = i == current && !failed;
+                stepLabels[i].setText((done ? "✓ " : active ? "● " : "○ ") + i18n(stepKeys[i]));
+                stepLabels[i].pseudoClassStateChanged(PseudoClass.getPseudoClass("done"), done);
+                stepLabels[i].pseudoClassStateChanged(PseudoClass.getPseudoClass("active"), active);
+            }
+            int percent = (int) Math.round(Math.max(0, syncProgress.progressProperty().get()) * 100);
+            if (failed) {
+                title.setText(i18n("home.progress.failed"));
+                action.setText(i18n("home.progress.retry"));
+            } else {
+                title.setText(current <= ClientSyncProgress.STEP_JAVA
+                        ? i18n("home.progress.checking")
+                        : i18n("home.progress.syncing", percent));
+                action.setText(i18n("button.cancel"));
+            }
+            error.setVisible(failed);
+            error.setManaged(failed);
+            detail.setVisible(!failed);
+            detail.setManaged(!failed);
+        };
+        syncProgress.stateProperty().addListener(o -> refresh.run());
+        syncProgress.stepProperty().addListener(o -> refresh.run());
+        syncProgress.progressProperty().addListener(o -> refresh.run());
+        refresh.run();
+
+        VBox box = new VBox(21, top, steps);
+        box.getStyleClass().add("home-card");
+        return box;
     }
 
     /// Sets the home button to install / update / join based on the selected instance and remote manifest.
@@ -265,7 +367,7 @@ public final class MainPage extends StackPane implements DecoratorPage {
 
     /// Installs or updates the client from fileApi when needed, then launches into the server.
     private void launch() {
-        Instances.ensureClientAndJoin();
+        Instances.ensureClientAndJoin(syncProgress);
     }
 
     @Override

HMCL/src/main/java/org/jackhuang/hmcl/ui/main/SettingsPage.java

@@ -3,7 +3,13 @@
 package org.jackhuang.hmcl.ui.main;
 
 import com.jfoenix.controls.JFXButton;
+import com.jfoenix.controls.JFXSlider;
+import javafx.beans.binding.Bindings;
+import javafx.beans.property.ReadOnlyObjectProperty;
+import javafx.beans.property.ReadOnlyObjectWrapper;
 import javafx.geometry.Insets;
+import javafx.scene.Node;
+import javafx.scene.layout.StackPane;
 import javafx.geometry.Pos;
 import javafx.scene.control.Label;
 import javafx.scene.control.ScrollPane;
@@ -11,6 +17,14 @@ import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.VBox;
 import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.setting.DownloadSource;
+import org.jackhuang.hmcl.setting.GameSettings;
+import org.jackhuang.hmcl.setting.SettingsManager;
+import org.jackhuang.hmcl.ui.SVG;
+import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
+import org.jackhuang.hmcl.util.DataSizeUnit;
+import org.jackhuang.hmcl.util.platform.SystemInfo;
+import org.jetbrains.annotations.Nullable;
 import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.ui.FXUtils;
@@ -33,6 +47,7 @@ import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Locale;
 import java.util.Set;
 import java.util.concurrent.CompletableFuture;
 import java.util.zip.GZIPInputStream;
@@ -43,90 +58,177 @@ import static org.jackhuang.hmcl.setting.SettingsManager.settings;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 import static org.jackhuang.hmcl.util.logging.Logger.LOG;
 
+/// The single launcher settings page: general, game and help cards.
+///
+/// Java management and the about page are reachable from the game and help cards and open as sub pages.
 public final class SettingsPage extends ScrollPane {
+
+    /// Smallest selectable maximum game memory in MiB.
+    private static final int MIN_MEMORY_MIB = 1024;
+    /// Step of the memory slider in MiB.
+    private static final int MEMORY_STEP_MIB = 256;
+
+    /// Builds the three setting cards.
     public SettingsPage() {
         this.setFitToWidth(true);
 
-        VBox rootPane = new VBox(10);
-        rootPane.setPadding(new Insets(10));
+        VBox rootPane = new VBox(13);
+        rootPane.setPadding(new Insets(21));
         this.setContent(rootPane);
         FXUtils.smoothScrolling(this);
 
-        {
-            ComponentList languagePaneList = new ComponentList();
+        rootPane.getChildren().addAll(
+                ComponentList.createComponentListTitle(i18n("settings.launcher.general")), createGeneralCard(),
+                ComponentList.createComponentListTitle(i18n("settings.group.game")), createGameCard(),
+                ComponentList.createComponentListTitle(i18n("settings.group.help")), createHelpCard());
+    }
 
-            {
-                var chooseLanguagePane = new LineSelectButton<SupportedLocale>();
-                chooseLanguagePane.setTitle(i18n("settings.launcher.language"));
-                chooseLanguagePane.setSubtitle(i18n("settings.take_effect_after_restart"));
+    /// Creates the card with the language and download source choices.
+    private static ComponentList createGeneralCard() {
+        ComponentList list = new ComponentList();
 
-                SupportedLocale currentLocale = I18n.getLocale();
-                chooseLanguagePane.setNullSafeConverter(locale -> {
-                    if (locale.isDefault())
-                        return locale.getDisplayName(currentLocale);
-                    else if (locale.isSameLanguage(currentLocale))
-                        return locale.getDisplayName(locale);
-                    else
-                        return locale.getDisplayName(currentLocale) + " - " + locale.getDisplayName(locale);
-                });
-                chooseLanguagePane.setItems(SupportedLocale.getSupportedLocales());
-                chooseLanguagePane.valueProperty().bindBidirectional(settings().languageProperty());
+        var chooseLanguagePane = new LineSelectButton<SupportedLocale>();
+        chooseLanguagePane.setTitle(i18n("settings.launcher.language"));
+        chooseLanguagePane.setSubtitle(i18n("settings.take_effect_after_restart"));
 
-                languagePaneList.getContent().add(chooseLanguagePane);
+        SupportedLocale currentLocale = I18n.getLocale();
+        chooseLanguagePane.setNullSafeConverter(locale -> {
+            if (locale.isDefault())
+                return locale.getDisplayName(currentLocale);
+            else if (locale.isSameLanguage(currentLocale))
+                return locale.getDisplayName(locale);
+            else
+                return locale.getDisplayName(currentLocale) + " - " + locale.getDisplayName(locale);
+        });
+        chooseLanguagePane.setItems(SupportedLocale.getSupportedLocales());
+        chooseLanguagePane.valueProperty().bindBidirectional(settings().languageProperty());
+        list.getContent().add(chooseLanguagePane);
 
-            }
+        // One choice drives both the file download source and the version list source.
+        var downloadSourcePane = new LineSelectButton<DownloadSource>();
+        downloadSourcePane.setTitle(i18n("settings.launcher.download_source"));
+        downloadSourcePane.setNullSafeConverter(source -> i18n("settings.download_source." + source.name().toLowerCase(Locale.ROOT)));
+        downloadSourcePane.setItems(List.of(DownloadSource.values()));
+        downloadSourcePane.valueProperty().bindBidirectional(settings().fileDownloadSourceProperty());
+        downloadSourcePane.valueProperty().addListener((observable, oldValue, newValue) -> {
+            if (newValue != null)
+                settings().versionListSourceProperty().set(newValue);
+        });
+        list.getContent().add(downloadSourcePane);
 
-            rootPane.getChildren().addAll(ComponentList.createComponentListTitle(i18n("settings.launcher.language")), languagePaneList);
+        return list;
+    }
+
+    /// Creates the card with the maximum memory slider and the Java summary row.
+    private static ComponentList createGameCard() {
+        ComponentList list = new ComponentList();
+        GameSettings.Preset preset = SettingsManager.getDefaultGameSettingsPresetOrCreate();
+
+        int totalMiB = Math.max(MIN_MEMORY_MIB, (int) DataSizeUnit.MEGABYTES.convertFromBytes(SystemInfo.getTotalMemorySize()));
+        JFXSlider slider = new JFXSlider(MIN_MEMORY_MIB, totalMiB, MIN_MEMORY_MIB);
+        slider.setBlockIncrement(MEMORY_STEP_MIB);
+        slider.setPrefWidth(280);
+        slider.setValueFactory(s -> Bindings.createStringBinding(
+                () -> "%.1f GB".formatted(s.getValue() / 1024), s.valueProperty()));
+        @Nullable Integer current = preset.maxMemoryProperty().getValue();
+        slider.setValue(current != null && current > 0 ? Math.min(current, totalMiB) : Math.min(4096, totalMiB));
+        // Moving the slider switches off automatic allocation and stores the chosen limit.
+        slider.valueProperty().addListener((observable, oldValue, newValue) -> {
+            int mib = (int) (Math.round(newValue.doubleValue() / MEMORY_STEP_MIB) * MEMORY_STEP_MIB);
+            preset.autoMemoryProperty().setValue(false);
+            preset.maxMemoryProperty().setValue(Math.max(MIN_MEMORY_MIB, mib));
+        });
+
+        BorderPane memoryPane = new BorderPane();
+        Label memoryLabel = new Label(i18n("settings.memory"));
+        BorderPane.setAlignment(memoryLabel, Pos.CENTER_LEFT);
+        memoryPane.setLeft(memoryLabel);
+        memoryPane.setRight(slider);
+        list.getContent().add(memoryPane);
+
+        BorderPane javaPane = new BorderPane();
+        Label javaLabel = new Label(i18n("settings.java.summary"));
+        BorderPane.setAlignment(javaLabel, Pos.CENTER_LEFT);
+        javaPane.setLeft(javaLabel);
+        JFXButton advanced = FXUtils.newBorderButton(i18n("settings.java.advanced"));
+        advanced.setOnAction(e -> Controllers.navigate(new SubPage(i18n("java.management"), new JavaManagementPage())));
+        javaPane.setRight(advanced);
+        list.getContent().add(javaPane);
+
+        return list;
+    }
+
+    /// Creates the card with the log actions and the entry to the about page.
+    private ComponentList createHelpCard() {
+        ComponentList list = new ComponentList();
+
+        BorderPane debugPane = new BorderPane();
+
+        Label left = new Label(i18n("settings.launcher.debug"));
+        BorderPane.setAlignment(left, Pos.CENTER_LEFT);
+        debugPane.setLeft(left);
+
+        JFXButton openLogFolderButton = new JFXButton(i18n("settings.launcher.launcher_log.reveal"));
+        openLogFolderButton.setOnAction(e -> openLogFolder());
+        openLogFolderButton.getStyleClass().add("jfx-button-border");
+        if (LOG.getLogFile() == null)
+            openLogFolderButton.setDisable(true);
+
+        SpinnerPane exportLogPane = new SpinnerPane();
+
+        JFXButton logButton = FXUtils.newBorderButton(i18n("settings.launcher.launcher_log.export"));
+        exportLogPane.setContent(logButton);
+        logButton.setOnAction(e -> {
+            exportLogPane.showSpinner();
+            onExportLogs().whenCompleteAsync((result, exception) -> {
+                exportLogPane.hideSpinner();
+                if (exception == null) {
+                    Controllers.dialog(i18n("settings.launcher.launcher_log.export.success", result));
+                    FXUtils.showFileInExplorer(result);
+                } else {
+                    LOG.warning("Failed to export logs", exception);
+                    Controllers.dialog(
+                            i18n("settings.launcher.launcher_log.export.failed") + "\n" + StringUtils.getStackTrace(exception),
+                            null,
+                            MessageType.ERROR
+                    );
+                }
+            }, Schedulers.javafx());
+        });
+
+        HBox buttonBox = new HBox();
+        buttonBox.setSpacing(10);
+        buttonBox.getChildren().addAll(openLogFolderButton, exportLogPane);
+        BorderPane.setAlignment(buttonBox, Pos.CENTER_RIGHT);
+        debugPane.setRight(buttonBox);
+        list.getContent().add(debugPane);
+
+        var about = new LineButton();
+        about.setTitle(i18n("settings.help.about"));
+        about.setTrailingIcon(SVG.ARROW_FORWARD);
+        about.setOnAction(e -> Controllers.navigate(new SubPage(i18n("about"), new AboutPage())));
+        list.getContent().add(about);
+
+        return list;
+    }
+
+    /// A titled page that hosts a settings sub page (Java management, about) inside the main navigator.
+    private static final class SubPage extends StackPane implements DecoratorPage {
+        /// The page state, holding the title shown in the window header.
+        private final ReadOnlyObjectWrapper<State> state;
+
+        /// Creates the page.
+        ///
+        /// @param title   the title shown in the header
+        /// @param content the page content
+        SubPage(String title, Node content) {
+            this.state = new ReadOnlyObjectWrapper<>(State.fromTitle(title));
+            getChildren().setAll(content);
         }
 
-        {
-            ComponentList miscPaneList = new ComponentList();
-
-            {
-                BorderPane debugPane = new BorderPane();
-
-                Label left = new Label(i18n("settings.launcher.debug"));
-                BorderPane.setAlignment(left, Pos.CENTER_LEFT);
-                debugPane.setLeft(left);
-
-                JFXButton openLogFolderButton = new JFXButton(i18n("settings.launcher.launcher_log.reveal"));
-                openLogFolderButton.setOnAction(e -> openLogFolder());
-                openLogFolderButton.getStyleClass().add("jfx-button-border");
-                if (LOG.getLogFile() == null)
-                    openLogFolderButton.setDisable(true);
-
-                SpinnerPane exportLogPane = new SpinnerPane();
-
-                JFXButton logButton = FXUtils.newBorderButton(i18n("settings.launcher.launcher_log.export"));
-                exportLogPane.setContent(logButton);
-                logButton.setOnAction(e -> {
-                    exportLogPane.showSpinner();
-                    onExportLogs().whenCompleteAsync((result, exception) -> {
-                        exportLogPane.hideSpinner();
-                        if (exception == null) {
-                            Controllers.dialog(i18n("settings.launcher.launcher_log.export.success", result));
-                            FXUtils.showFileInExplorer(result);
-                        } else {
-                            LOG.warning("Failed to export logs", exception);
-                            Controllers.dialog(
-                                    i18n("settings.launcher.launcher_log.export.failed") + "\n" + StringUtils.getStackTrace(exception),
-                                    null,
-                                    MessageType.ERROR
-                            );
-                        }
-                    }, Schedulers.javafx());
-                });
-
-                HBox buttonBox = new HBox();
-                buttonBox.setSpacing(10);
-                buttonBox.getChildren().addAll(openLogFolderButton, exportLogPane);
-                BorderPane.setAlignment(buttonBox, Pos.CENTER_RIGHT);
-                debugPane.setRight(buttonBox);
-
-                miscPaneList.getContent().add(debugPane);
-            }
-
-            rootPane.getChildren().addAll(ComponentList.createComponentListTitle(i18n("settings.launcher.misc")), miscPaneList);
+        @Override
+        public ReadOnlyObjectProperty<State> stateProperty() {
+            return state.getReadOnlyProperty();
         }
     }
 

HMCL/src/main/resources/assets/css/root.css

@@ -2237,6 +2237,65 @@
     -fx-text-fill: -monet-on-primary;
 }
 
+.home-progress-title {
+    -fx-font-family: "Noto Sans SC";
+    -fx-font-size: 16px;
+    -fx-text-fill: -monet-on-surface;
+}
+
+.home-progress-bar {
+    -fx-pref-height: 8px;
+    -fx-min-height: 8px;
+    -fx-max-height: 8px;
+}
+
+.home-progress-bar > .track {
+    -fx-background-color: -monet-outline-variant;
+    -fx-background-radius: 8px;
+    -fx-background-insets: 0;
+}
+
+.home-progress-bar > .bar {
+    -fx-background-color: -monet-primary;
+    -fx-background-radius: 8px;
+    -fx-background-insets: 0;
+    -fx-padding: 0;
+}
+
+.home-progress-error {
+    -fx-font-size: 12px;
+    -fx-text-fill: -monet-error;
+}
+
+.home-progress-button {
+    -fx-font-family: "Noto Sans SC";
+    -fx-background-color: transparent;
+    -fx-border-color: -monet-primary;
+    -fx-border-radius: 13px;
+    -fx-background-radius: 13px;
+    -fx-text-fill: -monet-primary;
+    -fx-padding: 8px 21px;
+    -fx-cursor: hand;
+}
+
+.home-progress-button .label {
+    -fx-text-fill: -monet-primary;
+}
+
+.home-progress-step {
+    -fx-font-family: "Noto Sans SC";
+    -fx-font-size: 12px;
+    -fx-text-fill: -monet-on-surface-variant;
+}
+
+.home-progress-step:active {
+    -fx-text-fill: -monet-primary;
+}
+
+.home-progress-step:done {
+    -fx-text-fill: -monet-on-surface;
+}
+
 .home-art-line {
     -fx-stroke: -monet-outline-variant;
     -fx-stroke-width: 1.5px;

HMCL/src/main/resources/assets/lang/I18N.properties

@@ -808,6 +808,26 @@ first_run.microsoft=Sign in with Microsoft
 first_run.invalid=Use 1 to 16 letters, digits or underscores.
 home.server=Server
 home.server.unreachable=Unreachable
+home.progress.step.check=Check updates
+home.progress.step.java=Prepare Java
+home.progress.step.sync=Sync modpack
+home.progress.step.join=Join server
+home.progress.checking=Checking for updates…
+home.progress.syncing=Syncing modpack · %d%%
+home.progress.failed=Sync failed
+home.progress.retry=Retry
+settings.group.game=Game
+settings.group.help=Help
+settings.java.summary=Java · managed automatically
+settings.java.advanced=Advanced…
+settings.help.about=About
+about.based_on=Based on HMCL
+about.check_update=Check for updates
+about.check_update.latest=The modpack is up to date.
+about.check_update.available=An update is available. Press "Update" on the home page.
+about.check_update.not_installed=The modpack is not installed yet.
+about.source_code=Source code
+about.copy_diagnostics=Copy diagnostics
 home.motd=Server announcement
 home.restart.title=Restart game
 home.restart.update=The game closed to apply an update. Update the client and start it again now?
@@ -815,7 +835,7 @@ home.restart.generic=The game asked to be restarted. Update the client and start
 server.join=Join Server
 server.update=Update
 instance.launch_and_enter_world=Play World
-instance.launch.empty=Start Game
+instance.launch.empty=Join Server
 instance.launch.empty.installing=Installing Game
 instance.launch.empty.tooltip=Install and launch the bundled server modpack
 instance.launch.test=Test Launch
@@ -1564,6 +1584,9 @@ settings.launcher.download.threads=Download Threads
 settings.launcher.download.threads.auto=Automatically Determine
 settings.launcher.download.threads.custom=Custom
 settings.launcher.download_source=Download Source
+settings.download_source.default=Automatic
+settings.download_source.official=Official
+settings.download_source.mirror=Mirror
 settings.launcher.download_source.auto=Automatically Choose Download Sources
 settings.launcher.default_addon_source=Default Addon Source
 settings.launcher.misc=Misc

HMCL/src/main/resources/assets/lang/I18N_zh_Hans.properties

@@ -631,6 +631,26 @@ first_run.microsoft=登录正版账号
 first_run.invalid=只能用 1 到 16 个英文字母、数字或下划线。
 home.server=服务器
 home.server.unreachable=连接不上
+home.progress.step.check=检查更新
+home.progress.step.java=准备 Java
+home.progress.step.sync=同步整合包
+home.progress.step.join=进入服务器
+home.progress.checking=正在检查更新…
+home.progress.syncing=正在同步整合包 · %d%%
+home.progress.failed=同步失败
+home.progress.retry=重试
+settings.group.game=游戏
+settings.group.help=帮助
+settings.java.summary=Java · 自动管理
+settings.java.advanced=高级…
+settings.help.about=关于
+about.based_on=基于 HMCL
+about.check_update=检查更新
+about.check_update.latest=整合包已是最新。
+about.check_update.available=有可用更新，请在首页点击“更新”。
+about.check_update.not_installed=尚未安装整合包。
+about.source_code=源代码
+about.copy_diagnostics=复制诊断信息
 home.motd=服务器公告
 home.restart.title=重启游戏
 home.restart.update=游戏为应用更新已退出。现在更新客户端并重新启动游戏吗？
@@ -638,7 +658,7 @@ home.restart.generic=游戏请求重启。现在更新客户端并重新启动
 server.join=进入服务器
 server.update=更新
 instance.launch_and_enter_world=进入世界
-instance.launch.empty=开始游戏
+instance.launch.empty=进入服务器
 instance.launch.empty.installing=安装游戏
 instance.launch.empty.tooltip=安装并启动服务器整合包
 instance.launch.test=测试游戏
@@ -1381,6 +1401,9 @@ settings.launcher.download.threads=下载线程数
 settings.launcher.download.threads.auto=自动选择线程数
 settings.launcher.download.threads.custom=自定义线程数
 settings.launcher.download_source=下载源
+settings.download_source.default=自动
+settings.download_source.official=官方源
+settings.download_source.mirror=镜像源
 settings.launcher.download_source.auto=自动选择下载源
 settings.launcher.default_addon_source=附加内容默认下载源
 settings.launcher.misc=杂项

HMCL/src/main/resources/assets/lang/I18N_zh_Hant.properties

@@ -625,6 +625,26 @@ first_run.microsoft=登入正版帳號
 first_run.invalid=只能使用 1 到 16 個英文字母、數字或底線。
 home.server=伺服器
 home.server.unreachable=無法連線
+home.progress.step.check=檢查更新
+home.progress.step.java=準備 Java
+home.progress.step.sync=同步整合包
+home.progress.step.join=進入伺服器
+home.progress.checking=正在檢查更新…
+home.progress.syncing=正在同步整合包 · %d%%
+home.progress.failed=同步失敗
+home.progress.retry=重試
+settings.group.game=遊戲
+settings.group.help=說明
+settings.java.summary=Java · 自動管理
+settings.java.advanced=進階…
+settings.help.about=關於
+about.based_on=基於 HMCL
+about.check_update=檢查更新
+about.check_update.latest=整合包已是最新。
+about.check_update.available=有可用更新，請在首頁點擊「更新」。
+about.check_update.not_installed=尚未安裝整合包。
+about.source_code=原始碼
+about.copy_diagnostics=複製診斷資訊
 home.motd=伺服器公告
 home.restart.title=重啟遊戲
 home.restart.update=遊戲為套用更新已結束。現在更新客戶端並重新啟動遊戲嗎？
@@ -632,7 +652,7 @@ home.restart.generic=遊戲要求重啟。現在更新客戶端並重新啟動
 server.join=進入伺服器
 server.update=更新
 instance.launch_and_enter_world=進入世界
-instance.launch.empty=開始遊戲
+instance.launch.empty=進入伺服器
 instance.launch.empty.installing=安裝遊戲
 instance.launch.empty.tooltip=安裝並啟動伺服器整合包
 instance.launch.test=測試遊戲
@@ -1375,6 +1395,9 @@ settings.launcher.download.threads=下載執行緒數
 settings.launcher.download.threads.auto=自動選取執行緒數
 settings.launcher.download.threads.custom=自訂執行緒數
 settings.launcher.download_source=下載來源
+settings.download_source.default=自動
+settings.download_source.official=官方來源
+settings.download_source.mirror=鏡像來源
 settings.launcher.download_source.auto=自動選取下載來源
 settings.launcher.default_addon_source=附加內容預設下載來源
 settings.launcher.misc=雜項