finds all sprite files
Generates the Sass for this sprite file
Returns the Glob of image files for this sprite
Generates the override defaults for this Sprite $#{name}-#{sprite_name}-position $#{name}-#{sprite_name}-spacing #{name}-#{sprite_name}-repeat:
Name of this spite
The on-disk location of this sprite
Returns a Sass::Engine for this sprite object
Returns the sass options for this sprite
Returns an Array of image names without the file extension
[Validate]