A sprite sheet is made up of a image and a information file. The image contains all the sprites and the information file tell us where all the sprites are.
Select the color in the sprite file that is transparency color.
Sprite name min max
Specify a sprite with the given name in the image. It's position is given by it's min (x,y) and max (x,y) rectangle.
- Introduction to Spritesheets - 2013