Feature requests: colors for kern groups

It would be hella cool if Glyphs allowed kern groups to be assigned right and left colors. This would necessitate custom colors, tho.

How exactly would that be useful? And where should the colors show?

How to differentiate between potentially dozens, or even hundreds of colors?

How exactly would that be useful?

It would make it possible to see which kerning groups glyphs are in without switching to list mode. List mode can only show one shape at a time. So it’s not great for analyzing lots of glyphs at once.

And where should the colors show?

Split the glyphs and show half on the left, half on the right.

How to differentiate between potentially dozens, or even hundreds of colors?

Custom colors would make it possible to differentiate dozens of colors. I think fonts that use hundreds of kern groups are probably rare.