Hey wow this was not so hard, just set some global styles, removed some hardcoded colors, and walked through the remaining hardcoded colors to pick a dark mode variant :) neat!!
I tried to get the alignment juuust right in Chrome and Firefox, but Dice's computer was still including a 1px sliver of border.
In this change, I'm adding 1px of extra padding between the border and the Flash area. I figure that, if the screenshots are incorrectly aligned by 1px, that's no big deal and I'm okay accepting that slightly-incorrect upload rather than having folks not be able to use the tool!
