Ticket #42100: 42100.5.diff

src/wp-admin/theme-editor.php

@@ -185 +185 @@
                 <pre><?php echo esc_html( $edit_error->get_error_message() ? $edit_error->get_error_message() : $edit_error->get_error_code() ); ?></pre>
         </div>
 <?php endif; ?>
+<?php if ( preg_match( '/\.css$/', $file ) ) : ?>
+        <div id="message" class="notice-info notice">
+                <p>
+                        <?php
+                        echo sprintf(
+                                /* translators: %s is a link to Custom CSS section in the Customizer. */
+                                __( 'There&#8217;s no need to change your CSS here &mdash; you can edit and live preview CSS changes in the <a href="%s">built in CSS editor</a>.' ),
+                                esc_url( add_query_arg( 'autofocus[section]', 'custom_css', admin_url( 'customize.php' ) ) )
+                        );
+                        ?>
+                </p>
+        </div>
+<?php endif; ?>
 
 <div class="fileedit-sub">
 <div class="alignleft">