Xfce theming issues with some applications green others blue

[Cencar44]

After the last update, there is no unity in the default green theme. Some apps it is green others it is blue. Can I do anything to correct this inconsistency?

[Aragorn]

There is a difference between gtk-based applications and qt-based applications, and likewise, a difference in how their theming is set. For qt-based applications in a gtk-based environment such as Xfce, you need to use qt5ct (for qt5-based applications) or qt6ct (for qt6-based applications).

Also, there are currently two main versions of gtk in use, being gtk3 and gtk4, with some applications (like gimp) still using gtk2, even.

There is plenty of information regarding theming issues on the forum, so please use the forum’s search function — it’s what it’s there for.

[banjo]

Have you done the needed changes regardig to .profile ?

• GTK theme not applying after update, appearance settings not changing theme - #3 by kewek
• After 2024-02-21 Stable Update ~/.profile file is no longer sourced
  …and many more

[Teo]

My bet would also be the sourcing of .profile.
I just created mini tutorial for that matter

[How-To] Consistent app theming on the XFCE desktop

This topic still brings confusion, so i will try to write a short explanation/tutorial/example/summary. First, the theory in short. The problem is, linux is an open system. There are many desktop environments and frameworks, each with its own theming engine/framework. So the only thing we can do, if we want to use programs for a different framework like KDE apps on XFCE for example, is to have the two different themes for the two frameworks and try to match them. Ideally the theme creators have…

[nikgnomic]

After recent update for lightdm, system is not applying configuration settings in ~/.profile including: export QT_QPA_PLATFORMTHEME="qt5ct" for QT theme

If there is no response to this command

echo $QT_QPA_PLATFORMTHEME

Forum users have posted 3 different ways to resolve this:

1. Copy configuration in ~/.profile to ~/.bash_profile

OR

2. Configure ~/.bash_profile to read ~/.profile

   tee -a ~/.bash_profile <<< "[[ -f ~/.profile ]] && . ~/.profile"
   

OR

3. create a symlink for ~/.profile to ~/.xprofile

   cd $HOME; ln -s .profile .xprofile
   

[Cencar44]

Firstly to @Aragorn, I do normally search the other posts before starting a post. However, on 11th Feb’24 whilst driving I had a stroke. The stroke occurred when a blood clot in my chest broke loose and travelled up my carotid artery and lodged on the left side of my brain. This area of the brain that control speech and language. The condition is called Aphasia, a disorder that affects your ability to speak, read, write and listen.
For example this post has taken me an hour to write, however the Neurologists say I should keep trying to do as much communication tasks as possible.
Now to @banjo, you are like a ninja that comes quietly, strikes, doesn’t say much but you have helped me out many times.
@Teo, this is quite a tutorial and in time, I hope I can adsorb it.
@nikgnomic, thanks for the well laid out examples.
Now that I have all this information, I’m sure in time I will be able to implement the necessary changes. Thanks to all.

[Aragorn]

@Cencar44

Firstly to @Aragorn, I do normally search the other posts before starting a post. However, on 11th Feb’24 whilst driving I had a stroke.

My apologies, and my sympathies. I can commiserate. I myself had a mild stroke on Boxing Day 2022.

@Cencar44

The stroke occurred when a blood clot in my chest broke loose and travelled up my carotid artery and lodged on the left side of my brain. This area of the brain that control speech and language. The condition is called Aphasia, a disorder that affects your ability to speak, read, write and listen.

Yes, I know about aphasia. Among other things, I have been educated in the paramedical sector.