Got a bug report: Captor seems to capture all "multimedia keyboard" buttons as if they're PrtScn keystrokes.
Also, have you considered a way to do a drop-shadow
inside an image? For example, I wanted to highlight an area to look like this:

But,

As you can see, the highlighting rectangle/circle affects the contrast of the image. Sometimes that's a good effect, but if the contrast of the highlight could be adjustable (and maybe the size of the drop-shadow) that seems like it'd do the trick.
Here's a feature suggestion that would make a
huge difference in cranking out fancy results: it'd be awesome to have a way to chain effects. I dunno if a whole scripting language would be necessary -- maybe just a panel where you'd have the effect list on the left and buttons to copy left to right for an "event" list (alongside buttons to move the events up or down in the sequence). Is that too elaborate?
Here's an example. Say I capture a rectangular area of the desktop:

Then add a drop-shadow:

Use the option to blur/grey/dim the outside of a rectangular selection on the capture:

And finally, drop-shadow again:

If this were a stand-alone effect, you could call the effect ''plaque'' since it kinda looks like one of those formal plaques you sometimes see as achievement awards or dedications. Here's another example using the object from the first item:
