I am running Gnome shell 3.12.2 on Ubuntu 14.04. Lately, after a few updates there seem to be some graphical errors, most notably a strange blur around dialogue boxes, menu options etc. I am guessing this is just messed up shadow around the boxes but do not know how to fix it. The red area in the screenshot below gives an idea of what I am talking about. Please help!
The 'Drop Shadow' can be fixed by the following steps -
Create the file gtk.css using the command
gedit ~/.config/gtk-3.0/gtk.css
and paste the following inside it
.window-frame, .window-frame:backdrop {
box-shadow: 0 0px 0px 1px alpha(black, 0.7), 0 0 0 1px mix(shade(@titlebar_bg_color, 0.1), @titlebar_fg_color, 0.00); }
Finally, restart GDM using the command
service gdm restart
The "messed up" shadow should no longer appear.
