If you use Hammerspoon, you can build your own menubar icons in Lua using the hs.menubar[1] API. I've built a clipboard history tool using that, for instance.
If you don't use Hammerspoon, you should check it out. :)
If you don't use Hammerspoon, you should check it out. :)
One of the more impressive things I've seen is stack line [0] a visualization tool that works with tiling window manager, yabai.