QTreeView: hide box in the corner

[Fire Cube]

Hello Guys
I'm trying to round off a QTreeView. Unfortunately it has an ugly box on the right in the corner. I would like to remove that. With this StyleSheet I round off the rest.

QTreeView {
	background-color: white;
	border-width: 0px;
	border-radius: 7px;
}

A photo so you know what I mean

[JoeCFD]

the box is for scrollers since you have two. If it is removed, they will overlap.

[Fire Cube]

@JoeCFD is it possible to round up this and change the color?

[JoeCFD]

https://stackoverflow.com/questions/5663837/customize-qscrollbar-intersection-using-stylesheet-qt/8226736

[Fire Cube]

Many Thanks
That worked great.