Popeye generates an inline image gallery from an unordered list of images. The gallery features clever inline image enlargement, i.e. the enlarged image stretches out over the site content without adding a visual overlay of the whole site. It stays fixed with one edge to its original coordinates, so that a sense of cohesiveness is created in the user interface and interaction.

One image with optional caption and image counter will be displayed at a time, and the user can navigate through the entire gallery by clicking buttons that appear on mouseover.