[LyX/master] Fix dark/light mode setting and run-time switch with Qt 6.8

[Stephan Witt]

Am 21.10.2024 um 12:48 schrieb Jürgen Spitzmüller <jspitzm at gmail.com>:
> 
> Am Montag, dem 21.10.2024 um 10:36 +0000 schrieb Juergen Spitzmueller:
>> commit 4560cfd0126e11919a20a671944cad97363d8ba9
>> Author: Juergen Spitzmueller <spitz at lyx.org>
>> Date:   Mon Oct 21 12:34:57 2024 +0200
>> 
>>     Fix dark/light mode setting and run-time switch with Qt 6.8
>>     
>>     The old method doesn't work any longer. This one is also
>> announced to
>>     work cross OSes -- verification on Mac and Win is needed!
> 
> Stephan, Eugene, could you test whether this works with Qt 6.8 and
> Mac/Win?

I’m on a holiday trip ATM and have only my macbook with Qt5 at hand.

In general Qt6.8 is announced to support macOS 12, 13, 14, 15. So we will loose many elder target platforms we currently support. 

And I’m not sure the show stoppers are fixed already…

I’ll check next week when I’m back at home.

Stephan

> 
> If so, this is candidate for stable.
> 
> -- 
> Jürgen