Settings to invert colors of the images

Useful for novels, for reading in dark mode

src/lib/components/Reader/Reader.svelte

@@ -340,6 +340,7 @@
       <div
         class="flex flex-row"
         class:flex-row-reverse={!volumeSettings.rightToLeft}
+        style:filter={`invert(${$settings.invertColors ? 1 : 0})`}
         on:dblclick={onDoubleTap}
         role="none"
         id="manga-panel"

src/lib/components/Settings/Reader/ReaderToggles.svelte

@@ -13,7 +13,8 @@
     { key: 'bounds', text: 'Bounds', value: $settings.bounds },
     { key: 'mobile', text: 'Mobile', value: $settings.mobile },
     { key: 'showTimer', text: 'Show timer', value: $settings.showTimer },
-    { key: 'quickActions', text: 'Show quick actions', value: $settings.quickActions }
+    { key: 'quickActions', text: 'Show quick actions', value: $settings.quickActions },
+    { key: 'invertColors', text: 'Invert colors of the images', value: $settings.invertColors }
   ] as { key: SettingsKey; text: string; value: any }[];
 </script>
 

src/lib/settings/settings.ts

@@ -57,6 +57,7 @@ export type Settings = {
   quickActions: boolean;
   fontSize: FontSize;
   zoomDefault: ZoomModes;
+  invertColors: boolean;
   volumeDefaults: VolumeDefaults;
   ankiConnectSettings: AnkiConnectSettings;
 };
@@ -84,6 +85,7 @@ const defaultSettings: Settings = {
   quickActions: true,
   fontSize: 'auto',
   zoomDefault: 'zoomFitToScreen',
+  invertColors: false,
   volumeDefaults: {
     singlePageView: false,
     rightToLeft: true,