- 
    Bug 
- 
    Resolution: Fixed
- 
    P1: Critical 
- 
    5.15.10, 6.4.2, 6.5.0 FF
- 
    None
- 
        
- 
        bf0f1fa7d (dev), 87fdd0cf8 (6.5)
The background of the splash screen is not transparent, although it is set to transparent in the respective QML file.
Reproduce:
Open "QtQuick Example - Window and Screen". Compile and run.
Result: 
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).
Expected result:
The splash screen should not have a white background.

- is duplicated by
- 
                    QTBUG-112537 A Window's background cannot be semitransparent anymore -           
- Closed
 
-         
- relates to
- 
                    QTBUG-95428 macOS: Top Level Transparent Window Regression Since 5.15 onwards - QML -         
- Closed
 
-         
- 
                    QTBUG-100460 macOS: Splash screen looses Transparency -         
- Closed
 
-         
- 
                    QTBUG-112537 A Window's background cannot be semitransparent anymore -           
- Closed
 
-         
- 
                    QTBUG-109603 Window transparency doesn't work -         
- Closed
 
-         
- 
                    QTBUG-115015 [REG 5.15.14->6.5.1]: Qt6 QML component Window setting property color: "transparent" doesn't make the Window transparent for Windows 11 and MacOS -         
- Closed
 
-         
- 
                    QTBUG-52494 QML SplashScreen not transparent On Windows 7 -         
- Closed
 
-         
