Confusion. Difference between SmoothingMode.AntiAlias and SmoothingMode.HighQuality

Question

This page says:

AntiAlias and HighQuality are equivalent and specify rendering with smoothing applied.

But then why do they both exist if they are equivalent? Does one have any other differences other than what we see? I.e. Does one perform better over the other, or is it just a case of one of them being implemented much sooner than the other and therefor is only really there for backwards-compatibility?

Answer 1

I've made some researchs, and here's what I've found :

"HighQuality (which is similar to AntiAlias but uses other, slower optimizations that improve the display on LCD screens)"