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# ParticleEmitterComponent.ParticleEmitter.ParticleColor

Options for specifying the behavior of the color of the particles.

```
enum ParticleColor
```

## Topics

### Enumeration Cases

[`case constant(ParticleEmitterComponent.ParticleEmitter.ParticleColor.ColorValue)`](/documentation/RealityKit/ParticleEmitterComponent/ParticleEmitter/ParticleColor/constant(_:))

The particle will remain the given color throughout its lifetime.

[`case evolving(start: ParticleEmitterComponent.ParticleEmitter.ParticleColor.ColorValue, end: ParticleEmitterComponent.ParticleEmitter.ParticleColor.ColorValue)`](/documentation/RealityKit/ParticleEmitterComponent/ParticleEmitter/ParticleColor/evolving(start:end:))

The particle’s color will start at the `start` color and transition over its lifetime to the `end` color.

### Enumerations

[`enum ColorValue`](/documentation/RealityKit/ParticleEmitterComponent/ParticleEmitter/ParticleColor/ColorValue)

Options for specifying whether the particle color is a single color, or if the particle should take a random color in the given range.

## Relationships

### Conforms To

[`Equatable`](/documentation/Swift/Equatable)

---

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