Icon Pictures probability simplification

[Moterius]

I want to hide something in the pictures of my items, but i do not want to create hundreds of pictures to drive the probability down. Please add a 'weight' or a 'chance' parameter to SpriteParameters.

[curiosity]

The game will reuse an already loaded asset if there are multiple references to it, so it's less inefficient than it may seem. The only duplication will be the in the structure of the prototype.