There were several notable enhancements made to the Image Gallery and Image Editor in the 10.5 version of CommonSpot.
Mainly 10.5 more robustly supports specifying size restrictions of the images that can be uploaded into the gallery. Now you can specify a size restriction that is for both width and/or height. and those restrictions can either be a min/max range, or a specific size.
When an image is uploaded that does not fit those exact dimensions, the built-in Image Editor allows contributors to easily edit the image, picking the portion of the image to use through a cropping rectangle.