Suggested approach: This is an intermediate to advanced question aimed at folks with UIKit experience. You could choose from
CAShapeLayer, and more – they are all quite popular on Apple's platforms.
If I were you, I'd list off a few different subclasses, but then pick one and try to provide more detail on how it works and why it exists.
Estimated difficulty: Advanced
UserDefaultsgood for? What is
UserDefaultsnot good for?
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