SwiftUI Inner Shadow

InnerShadow.swift

extension View {
    @ViewBuilder func innerShadow<ShapeType: Shape>(_ shape: ShapeType, color: Color, radius: CGFloat = 10, spread: CGFloat = 4, x: CGFloat = 0, y: CGFloat = 0) -> some View {
        self
            .overlay(
                shape.stroke(Color.clear, lineWidth: spread * 2)
                    .shadow(color: color, radius: radius, x: x, y: y)
            )
            .clipShape(shape)
    }
}

Usage.swift

RoundedRectangle(cornerRadius: 5)
    // other modifiers
    .innerShadow(RoundedRectangle(cornerRadius: 5), color: Color.black.opacity(0.2))
    // other modifiers (like shadows)