Parallax Carousel

1/// One page of a `ParallaxCarousel`. The "photo" is a mesh gradient with a2/// large SF Symbol, so the snippet needs no image assets.3public struct ParallaxCarouselSlide: Identifiable, Hashable {4    public let id: String5    let title: String6    let subtitle: String7    let systemImage: String8    /// 9 colors for a 3×3 mesh gradient.9    let colors: [Color]10​11    public init(title: String, subtitle: String, systemImage: String, colors: [Color]) {12        precondition(colors.count == 9, "ParallaxCarouselSlide needs 9 colors (3×3 mesh).")13        self.id = title14        self.title = title15        self.subtitle = subtitle16        self.systemImage = systemImage17        self.colors = colors18    }19}