Create 3x Unity2D Sprites

Required graphics design for 3x approx. 100x100px icon sprites. Each sprite shall have 4 transitions (icon options showed upon touch). Sprite sheet should be delivered as grid with not more than 1 second of smooth animation for each transition. Both animation and transitions are quite simple and involve simple conversions upon touch or during processing of a task. I will provide some guidelines but initial design of static icons will evolve into animated and shall be delivered as Unity importable assets.