Returns a URL to load the Customizer.

Fetches the saved Custom CSS content for rendering.

Fetches the custom_css post for a given theme.

Gets a WP_Theme object for a theme.

Returns an array of WP_Theme objects based on the arguments.

Returns whether the active theme is a block-based theme or not.

Updates the custom_css post for a given theme.

Fires on the first WP load after a theme switch if the old theme still exists.

Filters whether the active theme supports a specific feature.

Filters the array of URLs of stylesheets applied to the editor.