Sam,
Coming late to the game.
Have been using vim to view and/or edit Cache classes. I noticed that the coloring after a (Quit:') wasn't right, so I went looking for Mumps-based vim additions and found your package. At first I couldn't get it to work, until I added a "*.cls" to one of the files and then the funny coloration disappeared. However, now there is no coloration at all.
Should commands, functions, etc be colorized?
Not familiar with vim additions to know the functionalities your package adds to vim.
Thanks, Steve