The new version removes slashes therefore removing all my unicode characters from the custom css:
a.fvlink:visited:after{content: "\2713 ";color:#900f81;}
become uhm the same line but then without the slash before my uhm checkmark therefore displaying "2713" instead of the checkmark
however when i enter the "\" I save it and it shows the correct checkmark BUT when i go back again to the edit windows the "\" has gone.