Thanks for reacting. I have actually done that, but maybe I have written it wrong. Right now I copied the function that is shown in the handbook, with some added theme_supports. It looks like this now:
function gutenberg_setup() {
// Support Featured Images
add_theme_support( ‘post-thumbnails’ );
//Gutenberg
add_theme_support( ‘align-wide’ );
add_theme_support(‘editor-styles’);
add_theme_support(‘wp-block-styles’);
add_theme_support( ‘dark-editor-style’ );
add_theme_support( ‘responsive-embeds’ );
}
add_action( ‘after_setup_theme’, ‘gutenberg_setup’ );
Am I missing something or making a mistake in the code?