Dark fusion theme [Qt6, Win11]

[eddiezato]

I tried to enable the fusion theme when building with Qt6 on Win11. And it already looks pretty nice. Maybe we need an option.

[easymodo]

So it now follows the system dark theme setting on windows?

Maybe worth switching to it by default if available, instead of an option

[eddiezato]

So it now follows the system dark theme setting on windows?

Yep, including the titlebar.

[danmacode]

I'm following these instructions to compile from source: https://github.com/easymodo/qimgv/wiki/Compiling-qimgv-from-source

Can you share the changes needed to enable Qt6?

[eddiezato]

I just roughly replace Qt5 with Qt6 in CMakeLists:

sed -i 's|^find_package(Qt5|find_package(Qt6|;s|^if(Qt5_FOUND)|if(NOT Qt6_FOUND)|' CMakeLists.txt

I can share my build script for Win11, but it is strictly for msys2/ucrt64.