No not the glow (although keep that too). Inside wmTaskSwitcher (the semi-circle/pentagon shape) is a small black ring/circle/dot. Can you remove the white pentagon/semi-circle, and keep the circle/dot? Also as someone mentioned the 'close' button, instead of an X, how about a small solid red dot? With the discreet dot for TaskSwitcher it could be a nice effect that is also different to other themes