ScrollView frame paddings create interactive gaps between ScrollBars and edges
ScrollView (ab)uses native style to render its preudo-frame, and this creates various issues, both visual and UX.
In particular, the padding from a background Frame element is used to push ScrollBars inside the view, opening 2px gaps (in Breeze) between ScrollBars and the edges of a ScrollView.
Also, that corner at the intersection of ScrollBars when both are visible — should probably be blocked from events as well.