User blog comment:Kirkburn/Technical Update: April 13, 2015/@comment-166269-20150414132240/@comment-166269-20150414172545

Yeah, I'm always momentarily surprised to see it shown as  when I look up Gmail shortcuts, since I'm used to thinking of keyboard shortcuts in terms of combinations of key presses rather than what characters those combinations might correspond to. =)

That's my thinking, too. Is there a technical reason a button was chosen for this instead of a normal link, or was it done purely for styling purposes?

On a related note, the cursor style doesn't change when hovering over the button, either - it remains a normal pointer instead of changing to a hand like it does for the other links.