A message about the upcoming new default theme.
After the update that's currently taking place, there will be a new default theme for the site. Other older themes will have gone the way of the dodo and no longer be available. With the new default theme, you may choose between light and dark mode using a sun/moon icon toggle, which will be at the top right of your screen next to the notification bell. The page width and text size selectors will be located at the bottom of every page.