Ooohhhh, I already made that Widget. Surely, I could get it ready for the public in like 15 minutes...
Much more than 15 minutes later...
Say you want to give your users the option to control the opacity of a layer. Well, you could use the Transparency option in the Map Layers Widget, but what if you aren't already using a Map Layers Widget? What if you want to make the option easier to find than buried in the Map Layer Widget? What if you wanted to change the basemap opacity?
This little slider can do that. And the 0% and 100% are buttons.
