zoneminder/web/skins/classic/css/base/zones.css

.zones polygon {
  fill-opacity: 0.25;
}
.Active {
  stroke: #ff0000;
  fill: #ff0000;
}
.Inclusive {
  stroke: #FFA500;
  fill: #FFA500;
}
.Exclusive {
  stroke: #800080;
  fill: #800080;
}
.Preclusive {
  stroke: #0000FF;
  fill: #0000FF;
}