Resinator's error messages look amazing! I also feel like I’ve gained a lot of cursed but useless (to me) knowledge, so thanks for that. :-)

I don't have a horse in this race, but regarding FONT resources, I would like to humbly suggest not supporting them at all. Radical, but from what you wrote, they do seem pretty weird and ripe for accidental misuse. Plus, they are obsolete and it seems like Resinator already intentionally diverges from rc.exe in a few cases anyway.