feat: Added translucency effect to menus, dialogs and alerts. Can be turned off from Preferences > Appeareance (#2387) [skip e2e]

packages/web/src/javascripts/Components/Preferences/Panes/Appearance.tsx

@@ -14,6 +14,7 @@ import PreferencesSegment from '../PreferencesComponents/PreferencesSegment'
 import { PremiumFeatureIconName } from '@/Components/Icon/PremiumFeatureIcon'
 import EditorAppearance from './Appearance/EditorAppearance'
 import { GetAllThemesUseCase } from '@standardnotes/ui-services'
+import usePreference from '@/Hooks/usePreference'
 
 type Props = {
   application: WebApplication
@@ -33,6 +34,11 @@ const Appearance: FunctionComponent<Props> = ({ application }) => {
     application.getPreference(PrefKey.UseSystemColorScheme, PrefDefaults[PrefKey.UseSystemColorScheme]),
   )
 
+  const useTranslucentUI = usePreference(PrefKey.UseTranslucentUI)
+  const toggleTranslucentUI = () => {
+    application.setPreference(PrefKey.UseTranslucentUI, !useTranslucentUI).catch(console.error)
+  }
+
   useEffect(() => {
     const usecase = new GetAllThemesUseCase(application.items)
     const { thirdParty, native } = usecase.execute({ excludeLayerable: true })
@@ -106,6 +112,14 @@ const Appearance: FunctionComponent<Props> = ({ application }) => {
         <PreferencesSegment>
           <Title>Themes</Title>
           <div className="mt-2">
+            <div className="flex justify-between gap-2 md:items-center">
+              <div className="flex flex-col">
+                <Subtitle>Disable translucent UI</Subtitle>
+                <Text>Use opaque style for UI elements instead of translucency</Text>
+              </div>
+              <Switch onChange={toggleTranslucentUI} checked={!useTranslucentUI} />
+            </div>
+            <HorizontalSeparator classes="my-4" />
             <div className="flex justify-between gap-2 md:items-center">
               <div className="flex flex-col">
                 <Subtitle>Use system color scheme</Subtitle>

packages/web/src/javascripts/Components/Preferences/PreferencesCanvas.tsx

@@ -9,7 +9,10 @@ import { FOCUSABLE_BUT_NOT_TABBABLE } from '@/Constants/Constants'
 const PreferencesCanvas: FunctionComponent<PreferencesProps & { menu: PreferencesSessionController }> = (props) => (
   <div className="flex min-h-0 flex-grow flex-col md:flex-row md:justify-between">
     <PreferencesMenuView menu={props.menu} />
-    <div className="min-h-0 flex-grow overflow-auto bg-contrast" tabIndex={FOCUSABLE_BUT_NOT_TABBABLE}>
+    <div
+      className="min-h-0 flex-grow overflow-auto bg-contrast md:bg-[--popover-background-color]"
+      tabIndex={FOCUSABLE_BUT_NOT_TABBABLE}
+    >
       <PaneSelector {...props} />
     </div>
   </div>

packages/web/src/javascripts/Components/Preferences/PreferencesMenuView.tsx

@@ -24,7 +24,7 @@ const PreferencesMenuView: FunctionComponent<Props> = ({ menu }) => {
   )
 
   return (
-    <div className="border-b border-border bg-default px-5 py-2 md:border-0 md:bg-contrast md:px-0 md:py-0">
+    <div className="border-b border-border bg-default px-5 py-2 md:border-0 md:bg-[--popover-background-color] md:px-0 md:py-0">
       <div className="hidden min-w-55 flex-col overflow-y-auto px-3 py-6 md:flex">
         {menuItems.map((pref) => (
           <PreferencesMenuItem