magnification?

[Chris Brannon]

Hi all,
I'm asking this for a friend.  What's the preferred way to do screen
magnification in Linux these days?
I've read that gnome shell has magnification.
I've also read that there are a few general solutions, like changing the
display resolution.  There's also a tool out there called xmag.  Do
people with partial vision use it at all?

Thanks in advance,
-- Chris