apply_filters( 'twenty_twenty_one_svg_icons_social', array $social_icons )

228<?php229			 * Filters Twenty Twenty-One's array of social icons.230			 *231			 * @since Twenty Twenty-One 1.0232			 *233			 * @param array $social_icons Array of default social icons.234			 */235			$social_icons = apply_filters( 'twenty_twenty_one_svg_icons_social', self::$social_icons );236 237			foreach ( array_keys( $social_icons ) as $icon ) {238				$domains            = array_key_exists( $icon, $map ) ? $map[ $icon ] : array( sprintf( '%s.com', $icon ) );239				$domains            = array_map( 'trim', $domains ); // Remove leading/trailing spaces, to prevent regex from failing to match.240				$domains            = array_map( 'preg_quote', $domains );241				$regex_map[ $icon ] = sprintf( '/(%s)/i', implode( '|', $domains ) );