svg.background {
  position: absolute;
  top: 0;
  left: 0;

  width: 100%;
  height: 1000;
  display: block;
  z-index: -1;
  overflow: hidden;
}

g * {
	z-index: 1;
}

circle.highlight {
	mix-blend-mode: darken;
}

rect.grain {
	z-index: 10;
	mix-blend-mode: overlay;
}