Position and Maximum Size of feh window

[antofthy]

The --geometry lets you specify a fixed size and location for the window

BUG: specifying just a location is positioned right but produces a checkerboard display!
feh --geometry +50+5 vary_large_image.jpg
No image gets displayed

Full screen also does not take into account things like a bottom panel. and Window Decorations.
I wouldn't expect it to, as it is not always something that can be determined. Instead allowing the user
to specify display limits (placement and the size for --scale-down) would seem a better method.
Especially when you do not want checkerboard.

An option to center the window in that area would also work well but not nessary!