Add clickable swatches for each of the 16 "named" colors

[rymiel]

Closes #118. Was originally planned as part of #56 but didn't make it.

Note that this whole addition is disabled on mobile because of width concerns.

https://user-images.githubusercontent.com/53803019/173894990-85113e4a-9a04-4aa5-a4bf-2c9c81663121.mp4