Template:AssetIcon.css

.asset_icon {
  position: relative;
}

.square_background {
  z-index: 1;
  position: absolute;
  top: 0;
  left: 0;
}

.asset_overlay {
  z-index: 2;
  position: absolute;
  top: 0;
  left: 0;
}

.black {
  background: black;
}