[Gambas-bugtracker] Bug #3034: QT6 : Problems with displaying the color transparent in a readonly ComboBox

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http://gambaswiki.org/bugtracker/edit?object=BUG.3034&from=L21haW4-

Comment #5 by Bruce STEERS:

The ReadOnly factor of a ComboBox is not the real issue here.

A ComboBox that is ReadOnly renders the same as a Button.
If it is not ReadOnly then it renders a TextBox instead.
So yes there are understandable differences in how they look because Button background and TextBox background are different.

You will probably find (as I did) that all Buttons and many other controls also render Black if set to Transparent background.
So it certainly seems to be a bug that may need Benoit's understanding. sadly it does not seem to show on his system though making it not so easy to fix.

But it's also happening on my system so I can confirm the issue. Linux Mint 22.1 Xia, MATE, Metacity + Conpositing

Ps.
To change qt6 settings/theme use qt6ct
That is the qt6 configuration tool.
sudo apt install qt6ct

Bruce STEERS changed the state of the bug to: Accepted.


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