diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/ThemePackManagementPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/ThemePackManagementPage.java
index afa4652d84..8e11029c90 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/ThemePackManagementPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/main/ThemePackManagementPage.java
@@ -39,34 +39,16 @@
 import javafx.scene.image.Image;
 import javafx.scene.input.KeyCode;
 import javafx.scene.input.KeyEvent;
-import javafx.scene.layout.BorderPane;
-import javafx.scene.layout.HBox;
-import javafx.scene.layout.Priority;
-import javafx.scene.layout.Region;
-import javafx.scene.layout.StackPane;
+import javafx.scene.layout.*;
 import javafx.stage.FileChooser;
 import javafx.stage.Stage;
 import javafx.util.Duration;
-import org.jackhuang.hmcl.theme.Theme;
-import org.jackhuang.hmcl.theme.ThemePackAuthor;
-import org.jackhuang.hmcl.theme.ThemePackExporter;
-import org.jackhuang.hmcl.theme.ThemePackManager;
-import org.jackhuang.hmcl.theme.ThemePackManifest;
-import org.jackhuang.hmcl.theme.ThemePackResource;
-import org.jackhuang.hmcl.theme.Themes;
-import org.jackhuang.hmcl.ui.FXUtils;
-import org.jackhuang.hmcl.ui.ListPageBase;
-import org.jackhuang.hmcl.ui.SVG;
-import org.jackhuang.hmcl.ui.SVGContainer;
-import org.jackhuang.hmcl.ui.Controllers;
+import org.jackhuang.hmcl.theme.*;
+import org.jackhuang.hmcl.ui.*;
 import org.jackhuang.hmcl.ui.animation.ContainerAnimations;
 import org.jackhuang.hmcl.ui.animation.TransitionPane;
-import org.jackhuang.hmcl.ui.construct.ComponentList;
-import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
-import org.jackhuang.hmcl.ui.construct.ImageContainer;
+import org.jackhuang.hmcl.ui.construct.*;
 import org.jackhuang.hmcl.ui.construct.MessageDialogPane.MessageType;
-import org.jackhuang.hmcl.ui.construct.SpinnerPane;
-import org.jackhuang.hmcl.ui.construct.TwoLineListItem;
 import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
 import org.jackhuang.hmcl.util.StringUtils;
 import org.jackhuang.hmcl.util.TaskCancellationAction;
@@ -76,18 +58,11 @@
 
 import java.io.IOException;
 import java.nio.file.Path;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Optional;
+import java.util.*;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
-import static org.jackhuang.hmcl.ui.FXUtils.ignoreEvent;
-import static org.jackhuang.hmcl.ui.FXUtils.onEscPressed;
-import static org.jackhuang.hmcl.ui.FXUtils.runInFX;
+import static org.jackhuang.hmcl.ui.FXUtils.*;
 import static org.jackhuang.hmcl.ui.ToolbarListPageSkin.createToolbarButton2;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 import static org.jackhuang.hmcl.util.logging.Logger.LOG;
@@ -121,6 +96,8 @@ public final class ThemePackManagementPage extends ListPageBase<ThemePackManager
     ///
     /// @param onThemePacksChanged callback invoked after importing or deleting a theme pack
     public ThemePackManagementPage(Runnable onThemePacksChanged) {
+        getStyleClass().add("gray-background");
+
         this.onThemePacksChanged = Objects.requireNonNull(onThemePacksChanged);
         setItems(filteredList);
         setOnFailedAction(event -> refreshThemePacks());