NSSegmentedControl.Style.capsule
The control is displayed using the capsule style. In macOS 10.7 and later, this style uses the artwork defined for Texturedsquare, so you should specify Texturedsquare instead.
Declaration
case capsuleThe control is displayed using the capsule style. In macOS 10.7 and later, this style uses the artwork defined for Texturedsquare, so you should specify Texturedsquare instead.
case capsule