wp_register_colors_support( WP_Block_Type $block_type )

18function wp_register_colors_support( $block_type ) {19	$color_support = false;20	if ( $block_type instanceof WP_Block_Type ) {21		$color_support = $block_type->supports['color'] ?? false;22	}23	$has_text_colors_support       = true === $color_support ||24		( isset( $color_support['text'] ) && $color_support['text'] ) ||25		( is_array( $color_support ) && ! isset( $color_support['text'] ) );26	$has_background_colors_support = true === $color_support ||27		( isset( $color_support['background'] ) && $color_support['background'] ) ||28		( is_array( $color_support ) && ! isset( $color_support['background'] ) );29	$has_gradients_support         = $color_support['gradients'] ?? false;30	$has_link_colors_support       = $color_support['link'] ?? false;31	$has_button_colors_support     = $color_support['button'] ?? false;32	$has_heading_colors_support    = $color_support['heading'] ?? false;33	$has_color_support             = $has_text_colors_support ||34		$has_background_colors_support ||35		$has_gradients_support ||36		$has_link_colors_support ||37		$has_button_colors_support ||38		$has_heading_colors_support;39 40	if ( ! $block_type->attributes ) {41		$block_type->attributes = array();42	}43 44	if ( $has_color_support && ! array_key_exists( 'style', $block_type->attributes ) ) {45		$block_type->attributes['style'] = array(46			'type' => 'object',47		);48	}49 50	if ( $has_background_colors_support && ! array_key_exists( 'backgroundColor', $block_type->attributes ) ) {51		$block_type->attributes['backgroundColor'] = array(52			'type' => 'string',53		);54	}55 56	if ( $has_text_colors_support && ! array_key_exists( 'textColor', $block_type->attributes ) ) {57		$block_type->attributes['textColor'] = array(58			'type' => 'string',59		);60	}61 62	if ( $has_gradients_support && ! array_key_exists( 'gradient', $block_type->attributes ) ) {63		$block_type->attributes['gradient'] = array(64			'type' => 'string',65		);66	}67}