cesium颜色

new Cesium.Color(0.165, 0.165, 0.165,0.8)

Cesium.Color.WHITECesium.Color.RED.withAlpha(0.5)

Cesium.Color.fromCssColorString("#001aff")

Cesium.Color.fromCssColorString("rgba(254, 129, 6, 0.75)")

　var color = Cesium.Color.fromRandom({alpha: 0.5  });