Hello!
I have two suggestions for TWebImageControl properties:
1. AspectRatio
2. Stretch
This would greatly increase the usability of the control, I have the example when I don't know the image format and it's almost impossible to format the image to be correctly displayed for each case.
I would also recomend a new procedure ImageResize(NewX, NewY: integer). This could resize the image to the new format. The reason is to later store the image in a lower format. An example would be an application where users tahe photos from their phones and the images are unnecesarily big, so they could be shrinked to a fixed format before saving them to the DB.
Hope the suggestion is good enough to get implemented.