Drop shadow: White border on top/left edges

[obelisk]

The drop shadow feature puts a white border on the top/left edges. There is absolutely no need for this.

[helmut]

The drop shadow feature puts a white border on the top/left edges. There is absolutely no need for this.

Hmm, right, on the left and top of the image there's white border, only. I assume that it's for keeping the image centered. Perhaps an option "Keep image centered" would be good, here.