I use the 'file-icons' package in Atom editor (https://github.com/DanBrooker/file-icons), and it occurred to me that it would be nice to have icons for elixir.
That package uses a font 'mfizz' (https://github.com/mfizz-inc/font-mfizz) to implement the special icons, with CSS styling to add colour. To add to it would mean creating a single-color (black) version of the Elixir logo.
I don't know whether there is one existing or not, but if not, here's my attempt: