WP_Navigation_Block_Renderer::render( array $attributes, string $content, WP_Block $block ): string

677	public static function render( $attributes, $content, $block ) {678		/**679		 * Deprecated:680		 * The rgbTextColor and rgbBackgroundColor attributes681		 * have been deprecated in favor of682		 * customTextColor and customBackgroundColor ones.683		 * Move the values from old attrs to the new ones.684		 */685		if ( isset( $attributes['rgbTextColor'] ) && empty( $attributes['textColor'] ) ) {686			$attributes['customTextColor'] = $attributes['rgbTextColor'];687		}688 689		if ( isset( $attributes['rgbBackgroundColor'] ) && empty( $attributes['backgroundColor'] ) ) {690			$attributes['customBackgroundColor'] = $attributes['rgbBackgroundColor'];691		}692 693		unset( $attributes['rgbTextColor'], $attributes['rgbBackgroundColor'] );694 695		$inner_blocks = static::get_inner_blocks( $attributes, $block );696		// Prevent navigation blocks referencing themselves from rendering.697		if ( block_core_navigation_block_contains_core_navigation( $inner_blocks ) ) {698			return '';699		}700 701		static::handle_view_script_module_loading( $attributes, $block, $inner_blocks );702 703		return sprintf(704			'<nav %1$s>%2$s</nav>',705			static::get_nav_wrapper_attributes( $attributes, $inner_blocks ),706			static::get_wrapper_markup( $attributes, $inner_blocks )707		);708	}