Maintenance: Desktop - Avoid bright flash during app load.

app/frontend/apps/desktop/form/theme/global/getCoreDesktopClasses.ts

@@ -30,7 +30,7 @@ export const getCoreDesktopClasses: FormThemeExtension = (
         'flex-grow formkit-disabled:opacity-50 formkit-disabled:pointer-events-none',
       block: 'flex items-end',
       label:
-        'block mb-1 text-sm text-gray-100 dark:text-neutral-400 formkit-required:required formkit-invalid:text-red-500 formkit-errors:text-red-500',
+        'block -:mb-1 text-sm text-gray-100 dark:text-neutral-400 formkit-required:required formkit-invalid:text-red-500 formkit-errors:text-red-500',
       inner: 'rounded-lg text-sm',
       messages: 'mt-1 formkit-invalid:text-red-500 formkit-errors:text-red-500',
       help: 'text-stone-200 dark:text-neutral-500 mt-1',

app/views/desktop/index.html.erb

@@ -1,6 +1,6 @@
 <style>
 :root {
-  --background-primary: hsl(210, 17%, 98%);
+  --background-primary: rgb(25 25 25);
 }
 </style>
 

app/views/init/spinner-loading.html.erb

@@ -13,6 +13,9 @@ html,
 }
 html {
   background-color: var(--background-primary);
+}
+body,
+html {
   margin: 0;
 }
 #loading-app {