Creating a Theme manually

To create a theme override manually, you must add a .theme.json file into the res/themes directory in the git repository.

If you want to add image assets for your logo, navbar banner image, or background image, you must create a directory with the same name as the .theme.json file.

The Theme JSON file is a complete override of the default theme and not a partial one, meaning the entire file is overridden and there is no inheritance from the default theme.