Starting tomorrow, the default site scheme will change to Horizon for all new accounts, logged out users and for anyone who is using the current default site scheme, XColibur. (There's an exception: if you explicitly selected XColibur on the Viewing Options page as your preferred theme anytime after 8/31, you won't be switched over.)
Remember you can always change your site scheme at any time by going to the Viewing Options page. Be sure to scroll to the end of the page and hit the "Save Changes" button to save your preference.
← Ctrl ← Alt
Ctrl → Alt →
← Ctrl ← Alt
Ctrl → Alt →