547 × 365, I just took this small image to demonstrate the effect clearly, it also happens when I take a image that is larger than my screen
Incorrect behaviour is not scaling the image like this:
https://www.dropbox.com/s/bi6mlkiv84zlp8r/wrong.png
Or not scaling and no centering:
https://www.dropbox.com/s/ukpjygin9m3a2nm/wrong2.png
Correct behaviour would be to fill the complete background in a centered way. Can I give you more info?
