ummary source-code" id="source">
  <h2><span>Implementation</span></h2>
  <pre class="language-dart"><code class="language-dart">ParallaxRain(
    {this.key,
    this.numberOfDrops = 200,
    this.dropFallSpeed = 1,
    this.numberOfLayers = 3,
    this.dropHeight = 20,
    this.dropWidth = 1,
    this.dropColors = const [Colors.greenAccent],
    this.trailStartFraction = 0.3,
    this.distanceBetweenLayers = 1,
    this.child,
    this.rainIsInBackground = true,
    this.trail = false})
    : assert(number