VariableColor.swift

struct VariableColorView: View {
    @State private var isActive = false

    var body: some View {
        VStack(spacing: 16) {
            HStack {
                Image(systemName: "rainbow")
                    .symbolEffect(.variableColor, options: .speed(0.1), isActive: isActive)
                Image(systemName: "rainbow")
                    .symbolEffect(.variableColor.iterative, options: .speed(0.1), isActive: isActive)
                Image(systemName: "rainbow")
                    .symbolEffect(.variableColor.iterative.reversing, options: .speed(0.1), isActive: isActive)

            }
            .symbolRenderingMode(.multicolor)
            .imageScale(.large)
            Button("Variable Color") { isActive.toggle() }
        }
    }
}