as they stated on their blog, not everyone has Themes yet..they'll be rolling it out to everyone over the next day or 2 or something
http://gmailblog.blogspot.com/ [rquoter]To customize your inbox, go to the Themes tab under Settings. We'll be rolling out themes to everyone over the next couple of days, so if you don't see them yet, check back soon. As for which theme to choose, don't ask us. We're neutral [/rquoter]
Yeah it just suddenly appears. Google keeps doing this. I never knew I wanted this before, but now that I have it, I never want to give it up.
This is long overdue. I need a dark theme for my home PC's overall dark theme. Unfortunately there's nothing particularly useful at Userstyles.org for Gmail. (Their dark google search/google images themes are amazing though.)
I was using one from globex designs I think. But just last week I guess the site went down so none of the icons appeared, just a plain charcoal background. Using the graffiti theme. LOL @ terminal theme.