The "empty" image was a part of some tests that I did.
I wanted to used like a background image, so the returning of the "unfired" rocket image, after the up-movement/cleaning, will be immediate, without the returning of the "unfired" rocket from the bottom...
Maybe playing with show/hide the empty image..
But since the RB icon has the "switch animation" is inevitable, right?
Is a bit complicated, so really if we can't do this its ok! You already helped me enough with this!

About the cropping, I used the default images. The empty and full images should have the same dimensions/position. If not there will be a movement of the image on desktop after changing the status, and will look ugly..
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