On the top banner of the page where it says "Home Packages Forums Wiki Bugs AUR Download":
When you click on any of those to go to their respective pages the one you select will be white text with the others being gray. This is the case for all of them except for AUR. That one stays gray when you go to it.
I am sooo nit-picking.
We all make choices, but in the end, our choices make us.
Yeah, we know: https://bugs.archlinux.org/task/38498