SwiftUI add inverted mask

Question

I\'m trying to add a mask to two shapes such that the second shape masks out the first shape. If I do something like Circle().mask(Circle().offset(…)), this has

Answer 1

If you are after something like this:

Then you can just put the two shapes in a ZStack and give the masking one the color of a background:

struct MaskView: View {

    @Environment(\.colorScheme) var colorScheme: ColorScheme

    var body: some View {
        ZStack {
            Circle()
                .fill(Color.yellow)
            Circle()
                .fill(colorScheme == .dark ? Color.black : Color.white)
                .offset(x: 150.0, y: 10.0)
        }
    }
}