Create our own TinyMCE skin

[iseulde]

Moving away from #27279.
This would mean we don't have to override all the CSS from TinyMCE's default skin and thus load less CSS.

[DrewAPicture]

Seems like a reasonably good idea.

Question: I wonder what kind of overhead this would add in terms of keeping up with upstream changes.

[iseulde]

I don't think it'd be much work to keep up with changes. The default skin doesn't change that much anymore, but we should check every time we upgrade TinyMCE in core.

​https://github.com/tinymce/tinymce/commits/master/js/tinymce/skins/lightgray

[azaozz]

Nice idea but not needed any more since WP 5.0 :)