My font is meant to be all-white, so it's a little hard to see in both the pixel editor and the glyph grid—unless I work on it inverted to black. That's a decent workaround, but a choice of 2 or 3 checkerboards (light, medium, dark) for transparency would be awesome! Or if not that, maybe just have a darker checkerboard built in to some of the UI themes—like Topeka.
Thanks! That's another useful workaround to allow me to work in black (inverting within Caps is easy too). But since my game UI is white-on-black, doing the visual design work on the font AS it will be seen in the game would be a nice thing, even if I ultimately publish the font as black. Not a big deal, just nice!
I'll keep an eye open for unexpected downsides of a white font. If any problems emerge, I will invert my font to black, then re-invert it in the code as in your example.