xmc/modular/titlebar_icon/msn_messenger_1.0.css

:root {
  --titlebar-icon: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACYSURBVDhPpZABDsAgCAN5uk/zZ45OahAnmqxJowi9OWVRKW2yyHDpdSILQQxTtVYCNpAQxnBUDtEGBgZEh1B7HQH+BnoyAbA/AjAwVgN4I7wHQGiaCWHoHKYwRHcxdBH+Lf91dbx+/gtoqiEf9uJD6nSA4FD9PpwFY5j6hrgwB3ZaASjMbGYAaIa4MFYCUGdeAMP9apeW9gDxfcZs7l81ZQAAAABJRU5ErkJggg==");
}