load a sprite sheet (i.e. a bitmap containing lots of images).
mark the sprites out using rectangles. The sprites aren't always regularly placed (i.e. in a grid) within the bitmap.
give the sprites names.
make sequences of the regions.
export the marked regions in a text format so that this can be loaded by a game. (i.e. the regions can be blitted). How would you like to do it? It would be nice to be able to load bitmap and have a "region marking" tool. Actually this could be used more generally to add markers on sprites (e.g. for attachments or emitters). Regions (and markers) could be named. A region would effectively be a sprite, and markers within it would be markers on the sprite (and associated with it on export). After editing I could then export the metadata to file (flat text or YAML) which I could load into a game or pre-process into C structs.
I second this request, a feature like this would be very useful for setting hotspots etc for game sprites. Regions should also be settable for each frame separately. XML export of the per-frame info (frame delay, regions/hotspots) would be nice to have as well.