[skermes]

The obvious reason not to make color part of the syntax is that it precludes me from having different colors from whoever designed the language. In my case this is just inconvenient, but for color blind programmers, it could actually be a serious impediment to doing their job.

Of course, the solution to this would be to instead provide a UI (presumably in your editor) to change which colors are associated with which syntax bits... which is exactly what we have in any reasonable editor. So... what's the problem?