In CodeMirror, pair html tags with different capitalization not highlighted properly. I know that is better to have everything in lowercase, but highlighting of these cases could be a bit confusing.

E.g. if there are "pair" tags <Small> and </small>, the first is highlighted green and the second one is in red (as in case with unpaired tag).

I propose to highlight both in green. (If MW parses it well, then it should be highlighted as a valid solution.)