I've looked in previous posts in SO and elsewhere for an answer but no luck. I'm putting images in an NSCollectionView as well as just a single image itself but the only border that seems to work is the grey Bezel border. Other types that are available don't show up, like Button or Groove. This is true no matter what scaling option I use, or even if I use it in code. I'm using NSImageView.imageFrameStyle.
I hope someone has some insight into this. I didn't provide any code since I didn't think that's necessary. Using Xcode 10.1, Swift 4.2. Thanks for any help.