When I switch windows on current Unity using Alt+Tab, I get an ugly outline of size of the selected window occasionally showing on random places. Is there a way to change this outline to something better looking or eliminate it altogether?
NB These outlines appear on Ubuntu Desktop without any effects enabled.
Outlined Firefox
Outlined Nautilus
Outlined Terminal
Click on the images to better view the outlines in question.
gnome-screenshot -i
and select to grab the whole screen after a delay. This should give you time to create the strange lines. :)