Dark mode on/off all screen

[Glich (Mahir Labib)]

Also, for more effective use, you can try these low blocks, useful as your requirement

ThemeHandler Extension made by Glich

ThemeHandler An extension for MIT App Inventor 2. Theme Handler Extension to register, change and access themes globally. Easily register and manage global themes (light, dark, custom) for your Kodular apps with support for multiple screens, system theme detection, and dynamic value switching. Features of ThemeHandler Extension Global Theme Support Dynamic UI Styling Multi-Screen Compatible System Theme Detection Custom Theme Keys T…