Looks good! Unfortunately the page doesn't go into much detail - does anyone know if it can handle repeating, or images that have to be at a particular edge of the sprite?
You can't really have a repeating background that is a section of a sprite image in CSS, afaik, so no. That's a limitation of CSS in general, not just this tool.
actually, you can. well, at lest for 1 dimensional repetition. but the sprite image dimension will be limited to either vertically or horizontally. i use this one: http://csssprites.org/ --> "Spriting" x- and y-repeated images: SmartSprites supports turning background images repeated along x and y axes into sprites.
(on a side note, has anyone compared this with SmartSprites?)
You can†, which is precisely why I asked! Several of the better spriting tools can do tiling and edge alignment if you need it (and as a fan of sliding doors, I definitely do).
† You can only do either x-repeating or y-repeating in a given sprite, and everything that needs to repeat must extend from edge to edge
I would not say it's a limitation of CSS per se, more a limitation of what can be done with the spritemap CSS hack, because fundamentally that's what it is: A CSS hack to attempt to reduce page load-times by causing fewer HTTP requests.
