Example:
I have this in the dialog table
icon 5, 5 5 50 50, image.jpg
If the image is smaller than the icon zone (50 x 50) the icon zone isn´t fill totally by the image. It looks very bad

There are some way to fill all the zone with the image?
Second Question: There are same identifier to know the size (in cm) of one dialog control.
Thanks and sorry for my poor english