The Tile theme does just what its name suggests—tiles an image. Specifically, Tile provides the means to select a single image to display in full-size interspersed among tile pattern created from the rest of an album's thumbnails. The effect is unique but takes a bit of planning to achieve. To achieve this effect, Tile does not display any photo information next to album thumbnails. Clicking on thumbnails displays item's sized to fit the browser window over the tile pattern.
Tile is an experimental theme originally created to demonstrate possibilities in Gallery's theme system. If you have an idea on how Tile might be improved in future versions, add it to the list.