Add CODE_WIKI and update localization

Add a comprehensive CODE_WIKI.md documenting project architecture, modules, startup flow, plugin system, testing and developer workflows. Update localization resources (en-US.json, zh-CN.json) with new/translated keys for wallpaper controls (custom color UI), material & color settings (semantic roles, surfaces, refresh/polling state), appearance (corner radius), status bar font size options, privacy policy text, component library labels, clock settings, and new language entry (Korean). Also modify settings-related ViewModels and Settings page views to surface these new features and texts (MaterialColorSettingsPageViewModel.cs, SettingsViewModels.cs, WallpaperSettingsPageViewModel.cs, MainWindow.SettingsHardCut.Stubs.cs, ComponentsSettingsPage.axaml, WallpaperSettingsPage.axaml).

LanMountainDesktop/Localization/en-US.json

@@ -57,6 +57,8 @@
 "settings.wallpaper.refresh.12h":  "12 hours",
 "settings.wallpaper.refresh.24h":  "24 hours",
 "settings.wallpaper.color_label":  "Wallpaper Color",
+    "settings.wallpaper.custom_color_tooltip":  "Custom color",
+    "settings.wallpaper.custom_color_apply":  "Apply",
     "settings.wallpaper.placement_label":  "Placement",
     "settings.wallpaper.placement_desc":  "Adjust how the image fills the desktop.",
     "settings.wallpaper.pick_button":  "Browse Files",
@@ -332,6 +334,7 @@
     "settings.region.language_zh":  "Chinese",
     "settings.region.language_en":  "English",
     "settings.region.language_ja":  "Japanese",
+    "settings.region.language_ko":  "Korean",
     "settings.region.timezone_header":  "Time Zone",
     "settings.region.timezone_desc":  "Select a time zone. Clock and calendar widgets will follow this zone.",
     "settings.region.applied_format":  "Language switched to: {0}",
@@ -370,8 +373,11 @@
     "settings.appearance.theme_color_preview.app":  "Currently previewing colors extracted from the app wallpaper.",
     "settings.appearance.theme_color_preview.system":  "Currently previewing colors extracted from the system wallpaper.",
     "settings.appearance.theme_color_preview.fallback":  "No usable wallpaper was found. The app is using a fallback accent.",
+    "settings.appearance.corner_radius.label":  "Global corner radius style",
+    "settings.appearance.corner_radius.description":  "Select a fixed corner radius style inspired by Xiaomi HyperOS.",
     "component.color_scheme.follow_system":  "Follow system color scheme",
     "component.color_scheme.native":  "Use component custom color scheme",
+    "component.settings.color_scheme":  "Color Scheme",
     "settings.appearance.system_material.auto":  "Auto (recommended)",
     "settings.appearance.system_material.none":  "None",
     "settings.appearance.system_material.mica":  "Mica",
@@ -398,6 +404,37 @@
     "settings.material_color.system_material.none":  "None",
     "settings.material_color.system_material.mica":  "Mica",
     "settings.material_color.system_material.acrylic":  "Acrylic",
+    "settings.material_color.source.fallback":  "Fallback",
+    "settings.material_color.role.accent":  "Accent",
+    "settings.material_color.role.primary":  "Primary",
+    "settings.material_color.role.secondary":  "Secondary",
+    "settings.material_color.role.surface":  "Surface",
+    "settings.material_color.role.text":  "Text",
+    "settings.material_color.role.toggle":  "Toggle",
+    "settings.material_color.surface.detail_format":  "A={0:X2} Blur={1:0}",
+    "settings.material_color.title":  "Material & Color",
+    "settings.material_color.description":  "Unify Monet, wallpaper colors, semantic roles, and material surfaces.",
+    "settings.material_color.source.label":  "Color source",
+    "settings.material_color.source.description":  "Choose the single source used by app surfaces, components, and plugins.",
+    "settings.material_color.custom_seed.label":  "Custom Monet seed",
+    "settings.material_color.wallpaper_source.label":  "Wallpaper color source",
+    "settings.material_color.wallpaper_seed.label":  "Seed",
+    "settings.material_color.system_material.label":  "System material",
+    "settings.material_color.system_material.description":  "Apply the selected material mode to windows and host surfaces.",
+    "settings.material_color.native_events.label":  "Native wallpaper change events",
+    "settings.material_color.native_events.description":  "Use OS wallpaper notifications first and keep polling as fallback.",
+    "settings.material_color.native_events.active":  "Native wallpaper events active",
+    "settings.material_color.native_events.polling":  "Polling fallback active",
+    "settings.material_color.native_events.inactive":  "Wallpaper monitoring inactive",
+    "settings.material_color.refresh_interval.label":  "Polling interval",
+    "settings.material_color.refresh_now":  "Refresh colors",
+    "settings.material_color.preview.header":  "Unified preview",
+    "settings.material_color.source_status.header":  "Resolved source",
+    "settings.material_color.semantic.header":  "Semantic colors",
+    "settings.material_color.surfaces.header":  "Material surfaces",
+    "settings.material_color.wallpaper_source.auto":  "Auto",
+    "settings.material_color.wallpaper_source.app":  "App wallpaper",
+    "settings.material_color.wallpaper_source.system":  "System wallpaper",
     "settings.wallpaper.placement.fill":  "Fill",
     "settings.wallpaper.placement.fit":  "Fit",
     "settings.wallpaper.placement.stretch":  "Stretch",
@@ -430,6 +467,11 @@
     "settings.status_bar.network_speed_mode.download":  "Download only",
     "settings.status_bar.network_speed_transparent_background_label":  "Transparent background",
     "settings.status_bar.show_network_type_icon_label":  "Show network type icon",
+    "settings.status_bar.clock_font_size_label":  "Clock font size",
+    "settings.status_bar.network_speed_font_size_label":  "Network speed font size",
+    "settings.status_bar.font_size.small":  "Small",
+    "settings.status_bar.font_size.medium":  "Medium",
+    "settings.status_bar.font_size.large":  "Large",
     "settings.status_bar.shadow_header":  "Status Bar Shadow",
     "settings.status_bar.shadow_desc":  "Add shadow effect to the status bar for better visibility of transparent components.",
     "settings.status_bar.shadow_enabled_label":  "Enable shadow",
@@ -453,6 +495,7 @@
     "settings.components.corner_radius.header":  "Corner Design",
     "settings.components.corner_radius.label":  "Component Corner Radius",
     "settings.components.corner_radius.description":  "Adjust the shared corner radius from a square edge to a capsule-like shape, and expand the internal safe area with it.",
+    "settings.components.corner_radius.spec_tooltip":  "View Corner Radius Specification",
     "settings.update.title":  "Update",
     "settings.update.current_version_label":  "Current Version",
     "settings.update.latest_version_label":  "Latest Release",
@@ -597,6 +640,11 @@
     "settings.notifications.test.message_error":  "Something went wrong. Please try again.",
     "settings.notifications.test.title_default":  "Test notification",
     "settings.notifications.test.message_default":  "This is a test notification.",
+    "settings.privacy.policy_title":  "Privacy Policy",
+    "settings.privacy.policy_description":  "LanMountainDesktop values your privacy. We do not collect personal data without your consent.",
+    "settings.privacy.policy_loading":  "Loading privacy policy...",
+    "settings.privacy.policy_error":  "Failed to load privacy policy.",
+    "settings.privacy.telemetry_id_title":  "Telemetry ID",
     "settings.dev.title":  "Developer",
     "settings.dev.description":  "Debugging, diagnostics, and local plugin development options.",
     "settings.dev.infobar.title":  "Preview and developer features",
@@ -813,9 +861,13 @@
     "tooltip.component_library":  "Edit Desktop",
     "component_library.title":  "Widgets",
     "component_library.empty":  "Swipe to pick a category, tap to open, then drag a widget onto the desktop.",
+    "component_library.components_none":  "No components.",
     "component_library.drag_hint":  "Drag to place",
+    "component_library.preview_unavailable":  "Preview unavailable",
     "component.delete":  "Delete",
     "component.edit":  "Edit",
+    "component.move":  "Move",
+    "component.resize":  "Resize",
     "component.editor.instance_scope": "Changes apply to this component instance only.",
     "component.editor.info_header": "Component Info",
     "component.editor.id_label": "Component ID",
@@ -886,6 +938,9 @@
     "desktop_clock.settings.desc":  "Choose the time zone for the single clock.",
     "desktop_clock.settings.timezone_label":  "Time Zone",
     "desktop_clock.settings.second_mode_label":  "Second Hand",
+    "clock.settings.desc":  "Configure the time zone and second hand animation.",
+    "clock.settings.timezone":  "Time Zone",
+    "clock.settings.second_mode_label":  "Second Hand",
     "clock.second_mode.tick":  "Tick",
     "clock.second_mode.sweep":  "Sweep",
     "poetry.widget.loading_content":  "Loading poetry...",

LanMountainDesktop/Localization/zh-CN.json

@@ -72,6 +72,7 @@
     "settings.wallpaper.video_not_found":  "未找到视频壁纸文件。",
     "settings.wallpaper.video_player_unavailable":  "视频播放器不可用。",
     "settings.wallpaper.video_play_failed_format":  "播放视频壁纸失败：{0}",
+    "settings.wallpaper.video_mode":  "视频壁纸使用自动填充模式。",
     "settings.wallpaper.unsupported_file":  "所选文件类型不受支持。",
     "settings.wallpaper.apply_failed_format":  "应用壁纸失败：{0}",
     "settings.wallpaper.mode_format":  "壁纸模式：{0}。",
@@ -333,6 +334,7 @@
     "settings.region.language_zh":  "中文",
     "settings.region.language_en":  "英文",
     "settings.region.language_ja":  "日文",
+    "settings.region.language_ko":  "韩文",
     "settings.region.timezone_header":  "时区",
     "settings.region.timezone_desc":  "选择时区。时钟与日历组件会使用该时区。",
     "settings.region.applied_format":  "语言已切换为：{0}",
@@ -371,12 +373,15 @@
     "settings.appearance.theme_color_preview.app":  "当前正在预览从应用壁纸提取的颜色。",
     "settings.appearance.theme_color_preview.system":  "当前正在预览从系统壁纸提取的颜色。",
     "settings.appearance.theme_color_preview.fallback":  "没有可用壁纸，当前使用回退强调色。",
+    "settings.appearance.corner_radius.label":  "全局圆角样式",
+    "settings.appearance.corner_radius.description":  "选择固定的全局圆角样式，受 HyperOS 启发。",
     "component.color_scheme.follow_system":  "跟随系统配色",
     "component.color_scheme.native":  "使用组件自定义配色",
+    "component.settings.color_scheme":  "配色方案",
     "settings.appearance.system_material.auto":  "自动（推荐）",
     "settings.appearance.system_material.none":  "无",
-    "settings.appearance.system_material.mica":  "Mica",
-    "settings.appearance.system_material.acrylic":  "Acrylic",
+    "settings.appearance.system_material.mica":  "云母",
+    "settings.appearance.system_material.acrylic":  "亚克力",
     "settings.appearance.system_material_desc.switchable":  "将所选材质应用到窗口、Dock、状态栏和组件宿主背板。",
     "settings.appearance.system_material_desc.fixed":  "当前系统仅提供这里列出的材质模式。",
     "settings.appearance.system_material_desc.auto":  "自动模式会在 Windows 11 优先使用 Mica，在 Windows 10 优先使用 Acrylic，不可用时回退到无材质。",
@@ -391,14 +396,46 @@
     "settings.appearance.preview.apply_seed":  "应用",
     "settings.appearance.preview.wallpaper_candidates":  "壁纸候选主题色",
     "settings.appearance.preview.wallpaper_current":  "当前",
-    "settings.material_color.preview.wallpaper_current":  "Current",
-    "settings.material_color.theme_color_mode.neutral":  "Default neutral",
-    "settings.material_color.theme_color_mode.user":  "User theme color Monet",
-    "settings.material_color.theme_color_mode.wallpaper":  "Wallpaper Monet",
-    "settings.material_color.system_material.auto":  "Auto (recommended)",
-    "settings.material_color.system_material.none":  "None",
+    "settings.material_color.preview.wallpaper_current":  "当前",
+    "settings.material_color.theme_color_mode.neutral":  "默认中性",
+    "settings.material_color.theme_color_mode.user":  "用户主题色 Monet",
+    "settings.material_color.theme_color_mode.wallpaper":  "壁纸 Monet",
+    "settings.material_color.system_material.auto":  "自动（推荐）",
+    "settings.material_color.system_material.none":  "无",
     "settings.material_color.system_material.mica":  "Mica",
-    "settings.material_color.system_material.acrylic":  "Acrylic",    "settings.wallpaper.placement.fill":  "填充",
+    "settings.material_color.system_material.acrylic":  "亚克力",
+    "settings.material_color.source.fallback":  "回退",
+    "settings.material_color.role.accent":  "强调色",
+    "settings.material_color.role.primary":  "主色",
+    "settings.material_color.role.secondary":  "次色",
+    "settings.material_color.role.surface":  "表面",
+    "settings.material_color.role.text":  "文字",
+    "settings.material_color.role.toggle":  "开关",
+    "settings.material_color.surface.detail_format":  "Alpha={0:X2} 模糊={1:0}",
+    "settings.material_color.title":  "材质与颜色",
+    "settings.material_color.description":  "统一莫奈色、壁纸颜色、语义角色和材质表面。",
+    "settings.material_color.source.label":  "颜色来源",
+    "settings.material_color.source.description":  "选择应用表面、组件和插件使用的单一来源。",
+    "settings.material_color.custom_seed.label":  "自定义莫奈种子色",
+    "settings.material_color.wallpaper_source.label":  "壁纸颜色来源",
+    "settings.material_color.wallpaper_seed.label":  "种子色",
+    "settings.material_color.system_material.label":  "系统材质",
+    "settings.material_color.system_material.description":  "将所选材质模式应用到窗口和宿主表面。",
+    "settings.material_color.native_events.label":  "原生壁纸变更事件",
+    "settings.material_color.native_events.description":  "优先使用操作系统壁纸通知，并保持轮询作为回退。",
+    "settings.material_color.native_events.active":  "原生壁纸事件已激活",
+    "settings.material_color.native_events.polling":  "轮询回退已激活",
+    "settings.material_color.native_events.inactive":  "壁纸监控未激活",
+    "settings.material_color.refresh_interval.label":  "轮询间隔",
+    "settings.material_color.refresh_now":  "刷新颜色",
+    "settings.material_color.preview.header":  "统一预览",
+    "settings.material_color.source_status.header":  "已解析来源",
+    "settings.material_color.semantic.header":  "语义颜色",
+    "settings.material_color.surfaces.header":  "材质表面",
+    "settings.material_color.wallpaper_source.auto":  "自动",
+    "settings.material_color.wallpaper_source.app":  "应用壁纸",
+    "settings.material_color.wallpaper_source.system":  "系统壁纸",
+    "settings.wallpaper.placement.fill":  "填充",
     "settings.wallpaper.placement.fit":  "适应",
     "settings.wallpaper.placement.stretch":  "拉伸",
     "settings.wallpaper.placement.center":  "居中",
@@ -430,6 +467,11 @@
     "settings.status_bar.network_speed_mode.download":  "仅下载",
     "settings.status_bar.network_speed_transparent_background_label":  "透明背景",
     "settings.status_bar.show_network_type_icon_label":  "显示网络类型图标",
+    "settings.status_bar.clock_font_size_label":  "时钟字号",
+    "settings.status_bar.network_speed_font_size_label":  "网速字号",
+    "settings.status_bar.font_size.small":  "小",
+    "settings.status_bar.font_size.medium":  "中",
+    "settings.status_bar.font_size.large":  "大",
     "settings.status_bar.shadow_header":  "状态栏阴影",
     "settings.status_bar.shadow_desc":  "为状态栏添加阴影效果，使透明背景的组件更清晰。",
     "settings.status_bar.shadow_enabled_label":  "启用阴影",
@@ -453,6 +495,7 @@
     "settings.components.corner_radius.header":  "圆角设计",
     "settings.components.corner_radius.label":  "组件圆角",
     "settings.components.corner_radius.description":  "将组件容器圆角从直角连续调到接近胶囊的形态，并随圆角增大同步扩展内部安全区。",
+    "settings.components.corner_radius.spec_tooltip":  "查看圆角规范",
     "settings.update.title":  "更新",
     "settings.update.current_version_label":  "当前版本",
     "settings.update.latest_version_label":  "最新发布",
@@ -605,6 +648,11 @@
     "settings.notifications.test.message_error":  "操作失败，请重试。",
     "settings.notifications.test.title_default":  "测试通知",
     "settings.notifications.test.message_default":  "这是一条测试通知。",
+    "settings.privacy.policy_title":  "隐私政策",
+    "settings.privacy.policy_description":  "阑山桌面尊重您的隐私。未经您的同意，我们不会收集个人数据。",
+    "settings.privacy.policy_loading":  "正在加载隐私政策...",
+    "settings.privacy.policy_error":  "加载隐私政策失败。",
+    "settings.privacy.telemetry_id_title":  "遥测 ID",
     "settings.dev.title":  "开发者",
     "settings.dev.description":  "调试、诊断与本地插件开发相关选项。",
     "settings.dev.infobar.title":  "预览与开发者功能",
@@ -813,9 +861,13 @@
     "tooltip.component_library":  "桌面编辑",
     "component_library.title":  "桌面编辑",
     "component_library.empty":  "左右滑动选择类别，点击进入，然后拖动组件到桌面放置。",
+    "component_library.components_none":  "暂无组件",
     "component_library.drag_hint":  "拖动放置",
+    "component_library.preview_unavailable":  "预览不可用",
     "component.delete":  "删除",
     "component.edit":  "编辑",
+    "component.move":  "移动",
+    "component.resize":  "调整大小",
     "component.editor.instance_scope": "设置仅对当前组件实例生效。",
     "component.editor.info_header": "组件信息",
     "component.editor.id_label": "组件 ID",
@@ -885,6 +937,9 @@
     "desktop_clock.settings.desc":  "为单时钟选择时区。",
     "desktop_clock.settings.timezone_label":  "时区",
     "desktop_clock.settings.second_mode_label":  "秒针方式",
+    "clock.settings.desc":  "配置时钟组件的时区和秒针动画。",
+    "clock.settings.timezone":  "时区",
+    "clock.settings.second_mode_label":  "秒针方式",
     "clock.second_mode.tick":  "跳针",
     "clock.second_mode.sweep":  "扫针",
     "poetry.widget.loading_content":  "正在加载诗词",

LanMountainDesktop/ViewModels/MaterialColorSettingsPageViewModel.cs

@@ -13,12 +13,12 @@ namespace LanMountainDesktop.ViewModels;
 
 public sealed class MaterialSurfacePreviewOption
 {
-    public MaterialSurfacePreviewOption(string label, MaterialSurfaceSnapshot surface)
+    public MaterialSurfacePreviewOption(string label, MaterialSurfaceSnapshot surface, string detailFormat)
     {
         Label = label;
         BackgroundBrush = new SolidColorBrush(surface.BackgroundColor);
         BorderBrush = new SolidColorBrush(surface.BorderColor);
-        Detail = $"A={surface.BackgroundColor.A:X2} Blur={surface.BlurRadius:0}";
+        Detail = string.Format(CultureInfo.CurrentCulture, detailFormat, surface.BackgroundColor.A, surface.BlurRadius);
     }
 
     public string Label { get; }
@@ -232,6 +232,30 @@ public sealed partial class MaterialColorSettingsPageViewModel : ViewModelBase
     [ObservableProperty]
     private string _materialAcrylicText = string.Empty;
 
+    [ObservableProperty]
+    private string _sourceFallbackText = string.Empty;
+
+    [ObservableProperty]
+    private string _colorRoleAccentText = string.Empty;
+
+    [ObservableProperty]
+    private string _colorRolePrimaryText = string.Empty;
+
+    [ObservableProperty]
+    private string _colorRoleSecondaryText = string.Empty;
+
+    [ObservableProperty]
+    private string _colorRoleSurfaceText = string.Empty;
+
+    [ObservableProperty]
+    private string _colorRoleTextText = string.Empty;
+
+    [ObservableProperty]
+    private string _colorRoleToggleText = string.Empty;
+
+    [ObservableProperty]
+    private string _surfaceDetailFormat = string.Empty;
+
     public void Load()
     {
         var theme = _settingsFacade.Theme.Get();
@@ -401,12 +425,12 @@ public sealed partial class MaterialColorSettingsPageViewModel : ViewModelBase
 
         ColorRolePreviews =
         [
-            new MaterialColorRolePreviewOption("Accent", snapshot.Palette.Accent),
-            new MaterialColorRolePreviewOption("Primary", snapshot.Palette.Primary),
-            new MaterialColorRolePreviewOption("Secondary", snapshot.Palette.Secondary),
-            new MaterialColorRolePreviewOption("Surface", snapshot.Palette.SurfaceRaised),
-            new MaterialColorRolePreviewOption("Text", snapshot.Palette.TextPrimary),
-            new MaterialColorRolePreviewOption("Toggle", snapshot.Palette.ToggleOn)
+            new MaterialColorRolePreviewOption(ColorRoleAccentText, snapshot.Palette.Accent),
+            new MaterialColorRolePreviewOption(ColorRolePrimaryText, snapshot.Palette.Primary),
+            new MaterialColorRolePreviewOption(ColorRoleSecondaryText, snapshot.Palette.Secondary),
+            new MaterialColorRolePreviewOption(ColorRoleSurfaceText, snapshot.Palette.SurfaceRaised),
+            new MaterialColorRolePreviewOption(ColorRoleTextText, snapshot.Palette.TextPrimary),
+            new MaterialColorRolePreviewOption(ColorRoleToggleText, snapshot.Palette.ToggleOn)
         ];
 
         SurfacePreviews = snapshot.Surfaces.Values
@@ -415,7 +439,7 @@ public sealed partial class MaterialColorSettingsPageViewModel : ViewModelBase
                 MaterialSurfaceRole.DockBackground or
                 MaterialSurfaceRole.DesktopComponentHost or
                 MaterialSurfaceRole.OverlayPanel)
-            .Select(surface => new MaterialSurfacePreviewOption(surface.Role.ToString(), surface))
+            .Select(surface => new MaterialSurfacePreviewOption(surface.Role.ToString(), surface, SurfaceDetailFormat))
             .ToArray();
     }
 
@@ -449,7 +473,7 @@ public sealed partial class MaterialColorSettingsPageViewModel : ViewModelBase
             MaterialColorSourceKind.AppWallpaper => WallpaperSourceAppText,
             MaterialColorSourceKind.SystemWallpaper => WallpaperSourceSystemText,
             MaterialColorSourceKind.WallpaperAuto => WallpaperSourceAutoText,
-            _ => L("settings.material_color.source.fallback", "Fallback")
+            _ => SourceFallbackText
         };
     }
 
@@ -550,9 +574,17 @@ public sealed partial class MaterialColorSettingsPageViewModel : ViewModelBase
         WallpaperSourceAppText = L("settings.material_color.wallpaper_source.app", "App wallpaper");
         WallpaperSourceSystemText = L("settings.material_color.wallpaper_source.system", "System wallpaper");
         MaterialNoneText = L("settings.material_color.system_material.none", "None");
-        MaterialAutoText = L("settings.material_color.system_material.auto", "Auto");
+        MaterialAutoText = L("settings.material_color.system_material.auto", "Auto (recommended)");
         MaterialMicaText = L("settings.material_color.system_material.mica", "Mica");
         MaterialAcrylicText = L("settings.material_color.system_material.acrylic", "Acrylic");
+        SourceFallbackText = L("settings.material_color.source.fallback", "Fallback");
+        ColorRoleAccentText = L("settings.material_color.role.accent", "Accent");
+        ColorRolePrimaryText = L("settings.material_color.role.primary", "Primary");
+        ColorRoleSecondaryText = L("settings.material_color.role.secondary", "Secondary");
+        ColorRoleSurfaceText = L("settings.material_color.role.surface", "Surface");
+        ColorRoleTextText = L("settings.material_color.role.text", "Text");
+        ColorRoleToggleText = L("settings.material_color.role.toggle", "Toggle");
+        SurfaceDetailFormat = L("settings.material_color.surface.detail_format", "A={0:X2} Blur={1:0}");
     }
 
     private string L(string key, string fallback)

LanMountainDesktop/ViewModels/SettingsViewModels.cs

@@ -929,6 +929,9 @@ public sealed partial class ComponentsSettingsPageViewModel : ViewModelBase
     [ObservableProperty]
     private string _cornerRadiusStyleDescription = string.Empty;
 
+    [ObservableProperty]
+    private string _cornerRadiusSpecTooltip = string.Empty;
+
     public void Load()
     {
         var state = _settingsFacade.Grid.Get();
@@ -1026,6 +1029,8 @@ public sealed partial class ComponentsSettingsPageViewModel : ViewModelBase
         CornerRadiusStyleDescription = L(
             "settings.components.corner_radius.description",
             "Select a fixed corner radius style (inspired by Xiaomi HyperOS) to ensure consistency across all components.");
+        CornerRadiusSpecTooltip = L("settings.components.corner_radius.spec_tooltip", "View Corner Radius Specification");
+            
             
         CornerRadiusStyleOptions = GlobalAppearanceSettings.AllCornerRadiusStyles
             .Select(style => new SelectionOption(style, L($"settings.appearance.corner_radius.style_{style.ToLower()}", style)))

LanMountainDesktop/ViewModels/WallpaperSettingsPageViewModel.cs

@@ -103,6 +103,9 @@ public sealed partial class WallpaperSettingsPageViewModel : ViewModelBase
     [ObservableProperty]
     private IBrush _customColorBrush = new SolidColorBrush(Colors.White);
 
+    [ObservableProperty]
+    private string _customColorTooltip = string.Empty;
+
     public void Load()
     {
         var wallpaper = _settingsFacade.Wallpaper.Get();
@@ -338,6 +341,7 @@ public sealed partial class WallpaperSettingsPageViewModel : ViewModelBase
         WallpaperPlacementDescription = L("settings.wallpaper.placement_desc", "Adjust how the image fills the desktop.");
         ImportWallpaperButtonText = L("settings.wallpaper.pick_button", "Import Wallpaper");
         FilePickerTitle = L("filepicker.title", "Select wallpaper");
+        CustomColorTooltip = L("settings.wallpaper.custom_color_tooltip", "Custom color");
     }
 
     private string L(string key, string fallback)

LanMountainDesktop/Views/MainWindow.SettingsHardCut.Stubs.cs

@@ -146,6 +146,7 @@ public partial class MainWindow : Window
         BackToWindowsTextBlock.Text = Lf("button.back_to_platform", "Back to {0}", platformName);
         ToolTip.SetTip(BackToWindowsButton, Lf("tooltip.back_to_platform", "Back to {0}", platformName));
         ComponentLibraryTitleTextBlock.Text = L("component_library.title", "Widgets");
+        ComponentLibraryEmptyTextBlock.Text = L("component_library.components_none", "No components.");
         LauncherTitleTextBlock.Text = L("launcher.title", "App Launcher");
         LauncherSubtitleTextBlock.Text = OperatingSystem.IsLinux()
             ? L("launcher.subtitle_linux", "Displays installed apps discovered from Linux desktop entries.")

LanMountainDesktop/Views/SettingsPages/ComponentsSettingsPage.axaml

@@ -89,7 +89,7 @@
                                 </DataTemplate>
                             </ComboBox.ItemTemplate>
                         </ComboBox>
-                        <Button Classes="AppBarButton" ToolTip.Tip="View Corner Radius Specification" Command="{Binding $parent[Window].((vm:MainWindowViewModel)DataContext).OpenDesignSpecCommand}" CommandParameter="CORNER_RADIUS_SPEC.md">
+                        <Button Classes="AppBarButton" ToolTip.Tip="{Binding CornerRadiusSpecTooltip}" Command="{Binding $parent[Window].((vm:MainWindowViewModel)DataContext).OpenDesignSpecCommand}" CommandParameter="CORNER_RADIUS_SPEC.md">
                             <fi:SymbolIcon Symbol="QuestionCircle" />
                         </Button>
                     </StackPanel>

LanMountainDesktop/Views/SettingsPages/WallpaperSettingsPage.axaml

@@ -167,7 +167,7 @@
                                 Background="{Binding CustomColorBrush}"
                                 BorderThickness="0"
                                 CornerRadius="6"
-                                ToolTip.Tip="Custom color">
+                                ToolTip.Tip="{Binding CustomColorTooltip}">
                             <Button.Flyout>
                                 <Flyout Placement="BottomEdgeAlignedLeft">
                                     <StackPanel Width="260"