Initial work on the 'pad will expire' logic

www/slide/app-slide.less

@@ -6,6 +6,8 @@
 @import (once) "../../customize/src/less2/include/mediatag.less";
 @import (once) '../../customize/src/less2/include/tokenfield.less';
 
+@_cp-toolbar-color-warn: @colortheme_slide-warn;
+
 .mediatag_base();
 .toolbar_main();
 .fileupload_main();