Is the initial setting (Color Name List) a list of ALL the colors in each "sub" category listed in the drop menu?

If so, would it be possible to put a "namespace" in front (like html.violet, or html::violet). That way you see which source it's from? That way you know where it's from (though I realize this may cause multiple "hits" on the same value/name) Or perhaps same names have different values.

Either way, pretty cool. I agree, it would be nice to have a button or mode to stop spinning without having to hack it manually.

No they are separate lists. "All Color Names" comes from: https://github.com/meodai/color-names