Ubuntu – Ubuntu 15.10 / 16.04 theme doesn’t change


So I've tried to change my Ubuntu 15.10 to a different Theme or icon theme. Both didn't work or only worked partially. Most of the tries it only changed the topbar (sometimes with icon missing symbols) and sometimes it changes the launchbar. If i start nautilus with sudo, it also changes the icons in nautilus, but never the complete thing.

I've tried changing it with unity-tweak-tool, dconf-editor, the console, gnome tweak tool. I did several restarts. Nothing worked. Then i upgraded to 16.04 Xenial Xerus and tried everything all over again. Nothing worked either. Now I'm writing this Question.

I already tried deleting the user file or the whole config folder.

$ compiz --replace

doesn't execute till the end and gets several errors. I searched all of google but couldn't find a solution. Hope you can help me.

I got a Lenovo E460 i5 6200u, intel hd520 graphics, ssd 256gb, 8gb ram if that matters.

Best Answer

In a terminal, type:

sudo apt-get remove unity-tweak-tool && sudo apt-get install gnome-tweak-tool

Then go to etc/gtk-2.0 and etc/gtk-3.0 and delete settings file. Reboot and change themes using use gnome-tweak-tool.

It works fine for me in Ubuntu 16.04.

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