Board Thread:General Discussion/@comment-12.17.24.36-20151022152513/@comment-4010415-20151026175339

Yeah, in general, it's most likely illusions. Her Aura has an effect that bends light, thus affecting what everyone else sees.

For example, in Round One, she was bending the light around her hair and eyes (and possibly skin, to change her skin tone). She made it to where none of the colors in the light were bouncing off her hair, thus giving it the appearance of being black. She made it to where the color green bounced off her eyes, thus giving them the appearance of being green.

All in all, when we see color, we're really just seeing whatever color (or lack thereof, in the case of black) is bouncing off of the object. Objects absorb colors they aren't, from the light, and whatever color they are bounces off of them. White is the collection of all colors, so when we see white, we're just seeing every single color in the light bouncing off of it. I guess that's why white is so bright.

Side note: For some reason, every time I start talking about this, I visualize bits and pieces from the Magic School Bus episode about light and color.