Particles zIndex

Controls how particle layering affects opacity, velocity, and size.

Properties

Key	Type	Example	Notes
`value`	`number` / `range`	`0...100` / `{ min: 0, max: 100 }`	Base z-layer value
`opacityRate`	`number`	`2`	Multiplier applied to opacity by zIndex
`velocityRate`	`number`	`-10`	Multiplier applied to velocity by zIndex
`sizeRate`	`number`	`5`	Multiplier applied to size by zIndex

{
  "zIndex": {
    "value": {
      "min": 0,
      "max": 50
    },
    "opacityRate": 1,
    "velocityRate": -2,
    "sizeRate": 2
  }
}