Update site icon in embeds

Author: sabernhardt

src/wp-includes/embed.php

@@ -1233,8 +1233,8 @@ function the_embed_site_title() {
 	$site_title = sprintf(
 		'<a href="%s" target="_top"><img src="%s" srcset="%s 2x" width="32" height="32" alt="" class="wp-embed-site-icon" /><span>%s</span></a>',
 		esc_url( home_url() ),
-		esc_url( get_site_icon_url( 32, includes_url( 'images/w-logo-blue.png' ) ) ),
-		esc_url( get_site_icon_url( 64, includes_url( 'images/w-logo-blue.png' ) ) ),
+		esc_url( get_site_icon_url( 32, includes_url( 'images/w-logo-gray-white-bg.png' ) ) ),
+		esc_url( get_site_icon_url( 64, includes_url( 'images/w-logo-gray-white-bg.png' ) ) ),
 		esc_html( get_bloginfo( 'name' ) )
 	);