Name
This is the identifier of the set.
Instructions
These are the instructions that appear in a message box when the set is loaded.
Tile Size
This is the width and height of the image files that will be used as the tiles for the set.
The values used by the application for both width and height are in pixels. Furthermore,
the measurements must be divisible by 20 and no width or height is allowed below 40. An
example of this is an image with a width of 100 pixels and a height of 100 pixels.
Grid Size
The number of tiles that can fit side by side from left to right and from top to bottom on the Grid.