On Monday 13 of July 2015 23:46:39 Michael Henry wrote:
> In the appearance tab in system settings, under GTK styles and fonts, under
> the GTK3, it claims the theme engine isn't installed. I know I installed
> it. I would like to get Synaptic to use the right theme because it does
> look ugly.
>
> This has happened on two machines, the one we use for a projector and the
> laptop I'm currently on. Any suggestions to try?

I know of one bug - if it is not installed any other GTK3 theme outside 
gtk3-tqt-engine, the setting does not allow his choice. Settings probably 
does not assume that there is built-in GTK3 scheme, which is another possible 
option. And instead of allow to select between 'build-in' and 'gtk3-tqt' is 
reported, that no theme is installed.

Therefore, try to install some other GTK3 theme.

Note: This would probably be appropriate to the bug report.

-- 
Sl�vek