My goal is to create Apples activity ring sparkle effect. So I found Paul Hudson's Vortex library. There is already a spark effect, but I don't know how to create a custom one that fits my needs. I'm still quite new to SwiftUI animations. Does someone have an idea how to do it?

 VortexView(createSparkle()) {
                Circle()
                    .fill(.white)
                    .frame(width: 16)
                    .tag("circle")
            }

   func createSparkle() -> VortexSystem {
        let system = VortexSystem(tags: ["circle"])
        system.birthRate = 150
        system.emissionDuration = 0.2
        system.idleDuration = 0.5
        system.lifespan = 1.5
        system.speed = 1.5
        system.speedVariation = 0.2
        system.angle = .degrees(330)
        system.angleRange = .degrees(30)
        system.acceleration = [0, 3]
        system.dampingFactor = 4
        system.colors = .ramp(.white, .yellow, .yellow.opacity(0))
        system.size = 0.1
        system.sizeVariation = 0.1
        system.stretchFactor = 8
        return system
    }

Vortex project: https://github.com/twostraws/Vortex

Well done. You found the library.

But did you watch Sophie Hudson's brilliant Ted talk titled Making it Rain where she discusses Vortex in great detail?

Thank you for the recommendation. I’ll try it out.