Transparent NSCollectionView Background

Question

I\'m again struggling with setting NSViews background colors to transparent. I have a NSCollectionView as part of NSClipView which is part of a

Answer 1

Ok, after a long evil trial and error phase I found a solution at least for myself. There are two background colors to set in order to have the proper behavior:

1. the background color of the NSScrollView:

2. the NSCollectionView primary color:

Both have to be set appropriately. At the point I set both to the same color I got the background I want. With setting only the ScrollView background color there was still the white background when scrolling the items in the CollectionView.