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Fun SwiftUI tip - conditionally applying background and foreground styles: .background(filled ? AnyShapeStyle(.thickMaterial) : AnyShapeStyle(.clear)) Utilize the AnyShapeStyle wrapper to conditionally apply your style.

What's the problem and why does this work? You'll notice that some view modifiers in SwiftUI like .background or .foreground are expecting you to pass it a type that conforms to the protocol ShapeStyle. So you can't just toggle between Material and Color because while they are two different types

AnyShapeStyle provides us with a common concrete type that we can use when toggling between two different shape styles. Now everyone's happy! You, the compiler, and SwiftUI!

Oh this is very useful! Doesn’t that have performance impact? Like AnyView which is not recommended to use.