AnyBar and SuperDuper
Today, One Thing Well posted an article on a utility called AnyBar, written by Nikita Prokopov, that lets you put a colored dot in your menubar by sending your computer a UDP message. As soon as I read the article, I knew I could make some use of it.
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Instead of putting a bunch of words on my Desktop, I could just put a colored dot in my menubar—green for a successful backup, red for a failure.
Update (2015-04-24): Dr. Drang:
Unbeknownst to all of us, though, was TextBar a $3 app from Rich Somerfield that already does what T.J. wants. It doesn’t display graphics, but with Emoji and the rest of Unicode, I doubt that’s a significant limitation. TextBar seems to have a simpler user interface, especially when you want to display more than one signal in your menubar, but it’s meant to be used only for signals that are updated regularly. AnyBar is more flexible, but that flexibility comes with reduced simplicity.