Opacity Option for Assets

I've often wished to adjust the opacity on my assets. I'd love to see this as an option.

Interesting idea. There's a lot that can be done with overlays or semi-transparent tokens and images. It's done for weather effects. It could make any token into a ghost, illusion, hologram, etc. It could also be an interesting way for detection spells to reveal things.

For a slight reason to be hopeful about this idea...  Dungeonscrawl has this feature. Roll20 aquired (now owns) Dungeonscrawl and has said they plan to integrate DS into Roll20 (in some way, we users don't know how that will look yet). If Roll20 can simply take the Opacity tech / method / feature from DS and add that to Roll20, it would resolve this Suggestion.  Screenshot of opacity working on an image asset in Dungeonscrawl powered by Roll20 today:  As you can see Dungeonscrawl has an Opacity slider and a "Blendmode" with 4 choices: Normal, Add, Multiply, or Screen. 

Well that makes me hopeful!