Changing greyscale of progress

[ger]

Interesting idea. Two problems:

1. We have no way of forcing the displayed image to sync to the reuse time of the pressed hotkey.

2. We have no way of forcing looping animations to display from their first frame.

So if it worked at all we'd end up with a random clip of an image, rather than a cohesive, correctly-timed progress-style image.