AnyBar

AnyBar is a small indicator for your menubar that does one simple thing: it displays a colored dot. What the dot means and when to change it is up to you. AnyBar is controlled via a UDP port (1738 by default). Before any commands can be sent, AnyBar.app must be launched. Once launched, you may send it a message to change the style of the dot. black and white always has black or white fill. On Big Sur, where text color of menubar might change depending on the wallpaper, you might want to use filled and hollow instead. They are inverted when menubar changes its appearance. You can run several instances of AnyBar as long as they listen on different ports. Use the ANYBAR_PORT environment variable to change the port and open -na to run several instances. A title can be set to distinguish dots in the menubar. And the initial color of the dot can also be set.