Widgets on Graphicsview backgrounds

[pherthyl]

autoFillBackground didn't seem to have any effect, but setting Qt::WA_NoSystemBackground worked.

[wysota]

Setting the background role of the palette to transparent would probably be sufficient.

[macaco]

I've run into this same problem, and this solution works fine on Windows, but not on Mac OS X. On OS X, I get a solid black background to any widget with this attribute (instead of truly transparent). On one widget, I've seen it behave even worse where the background is completely uninitialized so it's mostly black with some colored noise.

Anyone have experience with this on this platform?

Thanks.