Fantastical Greyscale Menu Bar Icon
Fantastical is a great tool, but the problem with being really good in so many ways, is that it raises the bar; and then I bother to get niggled by the tiny little things. For example, the one colour menu bar icon in my menu: 
So a quick bit of hacking around with a couple of .png files in the application Package (if you don’t know what that is, don’t think about this), and voilà: 
Greyscale and calm restored to the menubar. These are the image files if you’d like them.
StatusItemColor.png and
StatusItemColorMonth.png
These are .jpg’s, save them as .png’s with the same name and overwrite the originals.
<p>Update: in version 1.1 there’s now an option for a black and white icon, yay!</p>
Sympathetic