Great work! Yes, I basically came to ask this- how about icons for polyhedrals, even if you don't have all numbers included?
Already on the Future Features list! d4, d8, d10, d12, d20, and some special ligatures for getting 100 on a d100, 1000 on a d1000 etc. They'll be in alternate stylistic sets and (once I have some setup done in the baseline) they'll have all values from 1 to the maximum on each die (plus 0).