register( 'duotone', array( 'register_attribute' => array( 'WP_Duotone', 'register_duotone_support' ), ) ); // Add classnames to blocks using duotone support. add_filter( 'render_block', array( 'WP_Duotone', 'render_duotone_support' ), 10, 3 ); add_filter( 'render_block_core/image', array( 'WP_Duotone', 'restore_image_outer_container' ), 10, 1 ); // Enqueue styles. // Block styles (core-block-supports-inline-css) before the style engine (wp_enqueue_stored_styles). // Global styles (global-styles-inline-css) after the other global styles (wp_enqueue_global_styles). add_action( 'wp_enqueue_scripts', array( 'WP_Duotone', 'output_block_styles' ), 9 ); add_action( 'wp_enqueue_scripts', array( 'WP_Duotone', 'output_global_styles' ), 11 ); // Add SVG filters to the footer. Also, for classic themes, output block styles (core-block-supports-inline-css). add_action( 'wp_footer', array( 'WP_Duotone', 'output_footer_assets' ), 10 ); // Add styles and SVGs for use in the editor via the EditorStyles component. add_filter( 'block_editor_settings_all', array( 'WP_Duotone', 'add_editor_settings' ), 10 ); // Migrate the old experimental duotone support flag. add_filter( 'block_type_metadata_settings', array( 'WP_Duotone', 'migrate_experimental_duotone_support_flag' ), 10, 2 );