client: add color scheme-related variations of the Next theme

src/public/app/widgets/type_widgets/options/appearance/theme.js

@@ -69,6 +69,8 @@ export default class ThemeOptions extends OptionsWidget {
     async optionsLoaded(options) {
         const themes = [
             { val: 'next', title: t("theme.triliumnext") },
+            { val: 'next-light', title: t("theme.triliumnext-light") },
+            { val: 'next-dark', title: t("theme.triliumnext-dark") },
             { val: 'light', title: t('theme.light_theme') },
             { val: 'dark', title: t('theme.dark_theme') }            
         ].concat(await server.get('options/user-themes'));

src/public/translations/en/translation.json

@@ -1074,7 +1074,9 @@
     "override_theme_fonts_label": "Override theme fonts",
     "light_theme": "Light",
     "dark_theme": "Dark",
-    "triliumnext": "TriliumNext (beta)",
+    "triliumnext": "TriliumNext Beta (Follow system color scheme)",
+    "triliumnext-light": "TriliumNext Beta (Light)",
+    "triliumnext-dark": "TriliumNext Beta (Dark)",
     "layout": "Layout",
     "layout-vertical-title": "Vertical",
     "layout-horizontal-title": "Horizontal",

src/routes/index.ts

@@ -68,6 +68,10 @@ function getThemeCssUrl(theme: string, themeNote: BNote | null) {
         return `${assetPath}/stylesheets/theme-dark.css`;
     } else if (theme === "next") {
         return `${assetPath}/stylesheets/theme-next.css`;
+    } else if (theme === "next-light") {
+        return `${assetPath}/stylesheets/theme-next-light.css`;
+    } else if (theme === "next-dark") {
+        return `${assetPath}/stylesheets/theme-next-dark.css`;
     } else if (!process.env.TRILIUM_SAFE_MODE && themeNote) {
         return `api/notes/download/${themeNote.noteId}`;
     } else {