Add labels for each color step (index)

[bryanberger]

I find myself getting a bit lost in our palettes (we have 20+ steps) highlighting the index value atop each color would be helpful imo. I've got this running locally can get a PR up if interested.

[colebemis]

Great idea. I'd be happy to review a PR for this 👍

[colebemis]

FYI, I'm converting this into a discussion in the "Ideas" category