pbiron's update: dashboard widget icons with dashicons and svg

Author: SirLouen

src/wp-admin/css/dashboard.css

@@ -409,20 +409,9 @@
 #dashboard_right_now .search-engines-info:before,
 #dashboard_right_now li a:before,
 #dashboard_right_now li > span:before { /* get only the first level span to exclude screen-reader-text in mu-storage */
-	content: "\f159" / ''; /* generic icon for items added by CPTs ? */
 	padding: 0 5px 0 0;
 }
 
-#dashboard_right_now .page-count a:before,
-#dashboard_right_now .page-count span:before {
-	content: "\f105" / '';
-}
-
-#dashboard_right_now .post-count a:before,
-#dashboard_right_now .post-count span:before {
-	content: "\f109" / '';
-}
-
 #dashboard_right_now .comment-count a:before {
 	content: "\f101" / '';
 }

src/wp-admin/includes/dashboard.php

@@ -320,10 +320,31 @@ function wp_dashboard_right_now() {
 			}
 			$text = number_format_i18n( $num_post_published ) . ' ' . $post_label;
 
-			if ( $post_type_object && current_user_can( $post_type_object->cap->edit_posts ) ) {
-				printf( '<li class="%1$s-count"><a href="edit.php?post_type=%1$s">%2$s</a></li>', $post_type, $text );
+			$icon_class = '';
+
+			if ( str_starts_with( $post_type_object->menu_icon, 'dashicons' ) ) {
+				$icon_class = $post_type_object->menu_icon;
+			} elseif ( str_starts_with( $post_type_object->menu_icon, 'data:image/svg+xml;base64,' ) ) {
+				printf(
+					'<style>
+#dashboard_right_now li.%1$s-count a:before,
+#dashboard_right_now li.%1$s-count > span:before {
+	content: url( %2$s );
+	height: auto;
+	width: 20px;
+}
+</style>',
+					$post_type,
+					$post_type_object->menu_icon
+				);
+			}
+
+			$class_attr = $icon_class ? sprintf( ' class="%s"', $icon_class ) : '';
+
+			if ( current_user_can( $post_type_object->cap->edit_posts ) ) {
+				printf( '<li class="%1$s-count"><a%3$s href="edit.php?post_type=%1$s">%2$s</a></li>', $post_type, $text, $class_attr );
 			} else {
-				printf( '<li class="%1$s-count"><span>%2$s</span></li>', $post_type, $text );
+				printf( '<li class="%1$s-count"><span%3$s>%2$s</span></li>', $post_type, $text, $class_attr );
 			}
 		}
 	}

src/wp-includes/class-wp-post-type.php

@@ -606,6 +606,11 @@ public function set_props( $args ) {
 			$args['at_a_glance'] = (bool) $args['show_in_menu'];
 		}
 
+		// If not set, default to the post icon.
+		if ( null === $args['menu_icon'] ) {
+			$args['menu_icon'] = 'dashicons-admin-post';
+		}
+
 		// If not set, default to the setting for 'show_in_menu'.
 		if ( null === $args['show_in_admin_bar'] ) {
 			$args['show_in_admin_bar'] = (bool) $args['show_in_menu'];