#6 unable to delete some saved colors

[earther]

I have colors saved from a long time ago and I am unable to delete them because the delete button is grayed out. More recent colors can be deleted.

(I would delete them manually but I have been unable to find a config file where these settings are stored.)

[earther]

So I did an apt-get remove --purge gcolor2 then reinstalled and the old colors are still there!!! How can I get rid of them!!!!