With this commit tag pills will now choose for the foreground colour
either the current palette “foreground” or “background” colours,
according to which has the higher contrast. It’s something @gernert has
expressed an interest in in the past, and I’ve tended to agree that it
is a nice piece of polish. It opens up the possibility of paler colours
for tag pills than are currently possible.
The trouble is that in order to implement it I’ve had to bring in a
third party library for parsing CSS colours. It weighs in just over
9KB, making quite a lot of weight for such a small feature. I don’t see
any other immediate uses for the colour parsing library either.
So, I’m undecided at the moment whether this should stay in the core.
