Was there a font you used for the keyboard prompts or did you just draw each letter/number yourself? (If you used a font may I know which one you used?)
If you're talking about the keyboard letters and numbers and icons (like arrow keys). That's all done by myself, but if you look at the Keyboard png or aseprite file you should see the (drawn) letters and numbers below the keyboard layouts in the empty space. Unfortunately I never made it a font file, but it is there.