4.x
Switch QT UI to icons with Google Material Design.
highgui: update error messages if no builtin backend
Merge pull request #25661 from itlab-vision:framebuffer
highgui: backends and plugins
make imgcodecs optional for highgui
Merge pull request #25551 from Kumataro:fix25550
Merge pull request #23109 from seanm:misc-warnings
Backport some highgui changes from #22754
Fix broken build for Qt6 with options: WITH_QT=ON and WITH_OPENGL=ON
style: remove extraneous std::cout
highgui: Make GThread mandatory with GTK
Fix #25833: The correct way to disable top-most state is with HWND_NOTOPMOST, not HWND_TOP.
Merge pull request #25561 from Kumataro:fix25560
Partially back-port #25075 to 4.x
highgui: fix trackbar value pointer handling
Fix for #5495 : add setTrackbarMin