I have read the whole unity manual and watched the videos on sprites but I have a question. Is there any way of creating primitive 2D shapes in unity? (I will be assigning trigger colliders to these as well). Or does one need to have a 3rd-party program even for basic primitive 2D shapes? My game really is very minimalist.
I did think about using particle system in a clever way but that won't have triggers and may not be as memory efficient for the several basic shapes that I am after.