What is the format name that Viscosity can work with that was developed by Steve Wilhite?
Viscosity (imaging software):  It can work with PNG, GIF, JPG/JPEG, BMP, AVI and its native VSC format. GIF: The Graphics Interchange Format (better known by its acronym GIF or ) is a bitmap image format that was developed by US-based software writer Steve Wilhite while working at the bulletin board service (BBS) provider CompuServe on June 15, 1987 and has since come into widespread usage on the World Wide Web due to its wide support and portability.
Graphics Interchange Format