When using some themes they appear with a Large question mark and and lightened out, and when selected a yellow alert states it needs the Adwaita desktop manager. I am running Compiz right now. Can this Manager be downloaded or are the themes i installed causing the problem. Installed ARC,Ceti, Candra and Vertex.
Any help would be appreciated.
DE
Hi @DE541,
some themes work well and some don’t, you can try other themes and see how they look, there are many to choose from here:
Just follow the instructions!. 
I’ve seen this behaviour before, but states it’s missing the Adwaita icon or theme. Are you sure it reads “Adwaita desktop manager”, since there are zero search results? 
Assuming that the theme is MATE-Compatible, the Adwaita theme (gnome-themes-standard) needs to be installed, part of the GNOME themes:
sudo apt install gnome-themes-standard
Sources:
Here is a screenshot of thems and the error message. Sorry it took so long to get back to this.
.
Thanks DE
Hi @DE541,
have you checked in Synaptic ( sudo apt-get install synaptic) if all the necessary packages are installed?:
In which case, I’m sure you need gnome-themes-standard, the window borders as seen in GNOME 3. Does that solve the problem?
Checked synaptic and gnome-themes-standard is installed. Did a reinstall still no luck?
Also uninstalled the custom themes to set Mate themes to default, with no luck.
Could this be a bug? Adding themes should not break the default themes?
System is usable though.
Thanks
DE
Hi DE,
what about graphics card drivers?. 
I checked out my vidio driver and that seems fine. My destop is now back to default for the most part, and is usable. I just will be unable to use the Adwaita theme, mabe a fix will come later. Don’t think we should waste anymore time on this. Thanks to all of you.
DE
