Setting same color in qtquickcontrols2.conf and QPalette for the application unsets that color

When setting a color (for example ButtonText) for a palette in qtquickcontrols2.conf and the same color in QPalette which is set for the QGuiApplication, that color is not used. Instead default color is used for that component.

If QPalette and the value in qtquickcontrols2.conf are different, then qtquickcontrols2.conf value will be used.

    QPalette palette;
    palette.setBrush( QPalette::ButtonText, QColor( 255, 0, 0 ) );
    QGuiApplication app(argc, argv);
    QGuiApplication::setPalette( palette );

[Controls]
Style=Imagine

[Imagine]
Path=:/imagine-assets

[Imagine\Palette]
ButtonText=#ff0000

This causes the button text color to be default value.

Attached sample reproduces the issue, modifying the qtquickcontrols2.conf to have different color for ButtonText fixes the issue.