I wanted a more interesting selection state for my app. Initially I wanted the highlight to be pointy on the right side so you know data & details flow to the right.

But my friend @tuomas_h (always challenging me to something better) suggested a little triangle tab pointing from the details to the selected row.

Through illusion, I got it to work using NSSplitViewController without doing something gross or abusing AppKit. The little arrow tab even follows on scroll! 😄

#AppKit #SwiftUI #macOS

@marioguzman @tuomas_h Love the triangle detail, “but:” It’d be so awesome if the Edit Options link had a good old disclosure triangle. After all, it expands/collapses that control panel "drawer." Without that visual affordance, it wasn't immediately clear to me what that link would do. 🧐