Ticket #40430: 40430.patch

src/wp-includes/class-wp-customize-manager.php

@@ -3771 +3771 @@
                         'label'       => __( 'Site Icon' ),
                         'description' => sprintf(
                                 /* translators: %s: site icon size in pixels */
-                                __( 'The Site Icon is used as a browser and app icon for your site. Icons must be square, and at least %s pixels wide and tall.' ),
-                                '<strong>512</strong>'
+                __( ' Site Icons are what you see in browser tabs, bookmark bars, and in the WordPress app. Upload one here!<br> Site Icons should be square, and at least %s.' ),
+                                '<strong>512px &times; 512px</strong>'
                         ),
                         'section'     => 'title_tagline',
                         'priority'    => 60,