Opacity of Shadow?

I was messing up with some Material Design elements and noticed that they include two parts with different opacity parameters like, in CSS, box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24), but in Fuse I didn’t saw Opacity property in Shadow or DropShadow. So is there any way to add opaque shadows? Thanks in advance.

You probably mean translucent rather than opaque, but either way, yes. Just set the alpha-component of the color of the shadow, and you should be set.