There is a Typo in Line 902 of the file qt_material/material.qss.template
In line 902 we have QScrolLBar:vertical { but instead we should have QScrollBar:vertical { with a lowercase L.
This affects every Vertical ScrollBar. The Background of the ScrollBars are not transparent, but rather just the SecondaryColor.
There is a Typo in Line 902 of the file
qt_material/material.qss.templateIn line 902 we have
QScrolLBar:vertical {but instead we should haveQScrollBar:vertical {with a lowercaseL.This affects every Vertical ScrollBar. The Background of the ScrollBars are not transparent, but rather just the SecondaryColor.