`fancy-splash-image’ points to the image to show when Emacs starts up. I can think of only two groups who’d need this: the Emacs maintainers and the XEmacs maintainers who’d set it to their respective logos. So naturally I customized mine:
Along the way, I found an interesting history of the design of the Emacs logo.
At one a week, there’s probably several years’ worth in the index of the Emacs Lisp manual, but I’m really not planning on doing this every week: this just seemed like a catchy title for a one-off post.