Add "layout colors" that can be included in a standard template for color selection. #188

^{Originally posted by NobelAT August 1, 2026}
One challenge I had when actually using the system was matching colors across slides, not that I couldn't do it, it was just very tedious.

I did end up creating layouts that I could use with the decks I was making, but it would be great if you could have some pre-defined theme colors that can be included in the bento.html prior to distribution, so when you open the color picker you have some pre-defined options, rather than needing to keep a color code list elsewhere to copy/paste from.