Great to see a font that has button/key glyphs.
I'm going to give it a try, and see if I can use it in my project; if I can, then I'll definitely donate.
A free* pixel font for Latin, Chinese, Korean, Japanese, Cherokee, Runic, Cyrillic, and other character sets. · By
Please let us know if you have any questions!
This is the block that's used for bindings: http://www.unicode.org/charts/PDF/U2460.pdf // https://unicode-table.com/en/blocks/enclosed-alphanumerics/