Fix color support for stretchy, strikethrough, and fbox (#792)

Summary:
Stuff like `\red{\overbrace{AB}}` works now in addition to `\color{red}{\overbrace{AB}}`. Strikethrough now respects color. The Firefox in the screenshotter doesn't seem to support `background-image` + `mask`, but I manually tested that the latest Firefox does.

Test plan:
Ran `make`, then tested in latest Chrome and Firefox to ensure color support was working, then ran `make screenshots`.
This commit is contained in:
Xuming Zeng
2017-08-15 19:25:31 -07:00
committed by Kevin Barabash
parent e192be2177
commit d01c73c312
7 changed files with 17 additions and 7 deletions

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