zenPhoto driving me CRAZY!

I am having MAJOR problems changing one MINOR portion of an existing zenPhoto theme. Here is a sample of my problem:

http://www.dicharry.com/3lgtest/gallery/

I have modified the image size to be 210x140, but the little white border behind the image I am unable to locate and change. I simply can’t find where in the code it is being created. I know this must be something easy but I am at a point where it is hopeless to keep trying.

Anyone out there care to enlighten me?

The associated PHP files are:

http://www.dicharry.com/3lgtest/gallery/themes/stopdesign/index.php
http://www.dicharry.com/3lgtest/gallery/themes/stopdesign/image.php
http://www.dicharry.com/3lgtest/gallery/themes/stopdesign/archive.php
http://www.dicharry.com/3lgtest/gallery/themes/stopdesign/album.php