Hi, there!
First, let me tell you your program is amazing. I am not a professional developer yet your software it's so easy to use that I have found hours of fun making animations of my favourite characters. Sadly, lately I can't choose new colors when running Pixel Proof on latest elementaryOS, the native Color picker windows opens but every color comes as black. Is there something wrong with Pixel Proof or is it a bug on this distro?
Thanks in advance.