I have not tried to use black or red quinoa in this recipe, but I'm just about certain that it would work.
I have not tried to use any other sugar in this recipe, but I'm sure any granulated sugar would work.
For non-dairy milk, I used unsweetened original almond milk. Any dairy-free milk would do the trick.
I have not tried to make this recipe vegan or egg-free but I suppose flax eggs (2 tablespoons of freshly ground flax mixed with 6 tablespoons of water and left to sit for 5 minutes) could work in this recipe.
I am sure that any other type of oil work work well in this recipe.