Hello!
Did you try
sudo apt-get remove bleufear-theme
to remove the theme and
sudo add-apt-repository --remove ppa:m4xm4n/bleufear
to remove the PPA?
NB: PPAs can be risky, and don't always work as expected.
After I back up, I'll give that theme a shot, and see what happens...
73 DE N4RPS
Rob