Rename EnlargedSourceImageSide constant to ENLARGED_SOURCE_IMAGE_SIDE.
Rename GendImageHost constant to GEND_IMAGE_HOST.
Rename MinSourceImageSide constant to MIN_SOURCE_IMAGE_SIDE.
Rename MaxSourceImageSide constant to MAX_SOURCE_IMAGE_SIDE.
Rename ThumbSide constant to THUMB_SIDE.
Fix New button alignment in toolbar.