remove gutenberg

// disable Gutenberg for posts
		add_filter('use_block_editor_for_post', '__return_false', 10);
		// disable Gutenberg for post types
		add_filter('use_block_editor_for_page', '__return_false', 10);
		add_filter('should_load_block_editor_scripts_and_styles', '__return_false', 10);
		remove_theme_support( 'editor-color-palette' );
		remove_theme_support( 'wp-block-styles' );
		remove_theme_support( 'core-block-patterns' );
		remove_theme_support( 'editor-gradient-presets' );
		remove_theme_support( 'editor-font-sizes' );
		remove_action( 'enqueue_block_assets', 'enqueue_block_styles_assets', 30 );
		remove_action( 'wp_body_open', 'wp_global_styles_render_svg_filters' );
		remove_action( 'in_admin_header', 'wp_global_styles_render_svg_filters' );