I am aware of this.Dexus wrote:
What I do to get it manually is I take a screenshot of the entire desktop and then I take a screen shot of it with osu! up, from there I just use an image editor to select the area within osu! and then copy the initial screenshot of the desktop to a new image.
Edited with gimp a bit but this is what it ends up looking like
I also noticed your program ignores the image scaling such as fill and fit and assumes you're using just center.
I don't really know how to detect desktop image scaling, most users use fill so it's not a critical problem. Working on a solution still.