How to get any wallpaper work with transparent onscreen and notification bar, NO root topic

Ok i have found a way to make any wallpaper appear with transparent notification and onscreen keys just like stock wallpapers, on stock launcher. It is so easy and i just haven't seen it reported anywhere so I thought I should mention it. All u need to do basically is to zoom in just a little bit on the wallpaper when selecting it. I mean crop it just a little bit. You will see it works like a charm :)