Okay, it's now up in the StencylForge: "Demo Light Sources with Image API". Each scene goes over a different idea:
The title scene explains how to make a "scratch off" effect (which is rather cool for how simple that part was), as well as my standard 'non-actor buttons', this time with images (much more complicated than I had hoped for, but oh well).
The first actual demo explains how I do multiple light sources when the game has light sources that move. The coding is pretty solid for flash games it seems (especially with smaller scenes), but for non-flash there seems to be some issues with lag and sometimes even crashing. Still, for flash, it's what I'd use.
The second demo explains a workaround I created for when the first option fails. It has some extra restrictions on it (such as only allowing it for the player actor and being careful with edge bounds), but the fact that there's no updating of the images once created means that lag is kept to a minimum, and it "should" work for non-flash games.
The third demo is the really basic one, focusing just on static light sources (no movement at all). It's contained in the other two demos, but I figured it'd help to see it on its own too.