I saw what looked like green, but I didn't think it was green. My brain told me, this is an optical illusion and blah blah blah! LOL I may have a problem! #ElemMathChat 
I think of it more as fascination about visual perception. It sure looks green. I'm 100% sure it isn't, if I zoomed in, but I can't argue with how it looks. And isn't that cool? #ElemMathChat I know. It is cool! My weirdo brain saw green, but immediatly started telling me it really isn't green. My brain is annoying sometimes. LOL #ElemMathChat