Super cool utility, I love it. May I suggest you to make SVG vector files of the glyphs or at least tweak this build to incorporate such because the raster pixels and blurry-ness are a bit distracting? Because I think it does great except for the Spanish-only Correlation explaination note, which would be nice to have in English too.
Anyway, farewell and I am excited to see what is next on that creative profile of yours… ^*^//