GNOME Bugzilla – Bug 700357
No way to set window transparency
Last modified: 2013-05-16 03:07:31 UTC
Since 3.7, there seems to be no way to set window transparency [https://bugzilla.gnome.org/show_bug.cgi?id=660711#c3]. The WM hack mentioned in the FAQ [https://live.gnome.org/Terminal/FAQ] doesn't work with Mutter. I tested setting _NET_WM_WINDOW_OPACITY using this script: https://gist.github.com/chjj/1342484, and it had no effect. I'm running mutter-3.8.1, and xorg-server 1.14.1.
Assuming the script is correctly working (tested under gnome-shell?), then it's just that the window manager used doesn't support it.
xprop $window -f _NET_WM_WINDOW_OPACITY 32c -set _NET_WM_WINDOW_OPACITY 0xaaaaaaaa works fine here, with gnome-shell
You're absolutely right -- that works here too. The script is broken. Sorry for the noise, I really should've checked that first. As recompense, here's a script that actually works: https://gist.github.com/nirbheek/5589105 I'll update the FAQ entry and add that. Thanks!