Qt apps have a slightly different color than all the KDE apps and they don't obey KDE's color schemes and don't match the borders nicely and look a bit out-of-place...



Is there any way to make Qt use KDE's colors?

Thanks in advance!

Qt applications should use KDE Colours by default, it isn't an option. Have you used the Qt4 options? This could have overwritten your KDE settings. Try deleting ~/.config/Trolltech.conf

Nope, deleting Trolltech.conf doesn't help.

Just interested, which Qt application is not obeying the colour theme?

All of them - the one I used in the screenshot was LyX, but the same happens with any other Non-KDE Qt application.

Very unusual. Have you every used the Qt4 configuration utility?

You mean qtconfig? I do, to set correct fonts...

I get this problem sometimes too. For me it also includes displaying with wrong widget style as well. I haven't been able to nail down what causes it though.

qtconfig will do it. It damages settings. You need to use System Settings to reset the settings.

bcooksley wrote:qtconfig will do it. It damages settings. You need to use System Settings to reset the settings.

So... how do I do that?

Try reselecting Colours to begin with. Change theme then change back to Oxygen. Repeat the same with Style.

Edit: It changed the theme of the running application, but after closing and reopening it again, it was back to the incorrect theme...
(I deleted Trolltech.conf before doing that.)

Does this happen under a new user?

I have had the same issue - pure Qt apps used an older/ different color scheme. When I deleted my .kde4 folder to celebrate the 4.2 release, the problem went away.

mindfall wrote:I have had the same issue - pure Qt apps used an older/ different color scheme. When I deleted my .kde4 folder to celebrate the 4.2 release, the problem went away.

Aha! So it's reading from my KDE 3's .kde folder! If I move it, Qt apps start normally. I'll have to play around with that a bit and figure out where exactly it's storing it.

Thanks mindfall!