theme dark grey

src/shared/constants/themes.js

@@ -19,6 +19,12 @@ export const THEME_CONFIG = {
         isDark: true,
         useDarkClass: true,
         name: 'Dark'
+    },
+    darkgrey: {
+        cssFiles: [appCss],
+        isDark: true,
+        useDarkClass: true,
+        name: 'Dark Grey'
     }
     // darkold: {
     //     cssFiles: [appLegacy, dark],

src/shared/utils/base/ui.js

@@ -107,6 +107,8 @@ function changeAppThemeStyle(themeMode) {
 
     applyThemeFonts(themeMode, themeConfig.fontLinks);
 
+    document.documentElement.setAttribute('data-theme', themeMode);
+
     const shouldUseDarkClass =
         typeof themeConfig.useDarkClass === 'boolean'
             ? themeConfig.useDarkClass