> Also I made a fork to add a support for G-Expressions and I will wait
> until close a request¹ before sending a patch.  You could try it now:
>
> $ git clone https://github.com/wigust/highlight-stages.git -b gexp
> $ cd CLONED_REPOSITORY_DIRECTORY
> $ guix package --install-from-file=guix.scm

Works for me!  I’ve augmented the regexp to match the long forms: