The background of the splash screen is not transparent, although it is set to transparent in the respective QML file.
Open "QtQuick Example - Window and Screen". Compile and run.
Windows: The splash screen has a white background (see image below).
Linux without Compositor: The splash screen has a black background. With a compositor it's transparent as it should be.
MacOS (5.15 and 6.5): The splash screen has a white background.
MacOS (5.12): As expected result (not affected).
The splash screen should not have a white background.
|For Gerrit Dashboard: QTBUG-112473|
|471386,7||windows: Skip initial background paint for Quick with alpha||dev||qt/qtbase||Status: ABANDONED||+1||0|
|472965,6||Revert "Apply system background color for top level window"||dev||qt/qtbase||Status: MERGED||+2||0|
|473164,2||Revert "Apply system background color for top level window"||6.5||qt/qtbase||Status: MERGED||+2||0|