See the following screenshot:
( For some reason, the screenshot doesn't appear! So, direct link: download/file.php?mode=view&id=1165 )
Particularly at what is happening at line 82. Apparently, (from my small investigations) Sublime Text doesn't like expressions in the form of "fun f = " *within* a let...in...end blocks, even though the file containing the supposedly violating syntax compiles and executes fine with my Standard ML New Jersey compiler ("sml"), i.e. is de-facto valid syntax in my case.
Is there something I can do? I think no highlighting is often better than bad highlighting, but highlighting helps me a lot. So I would like to remedy this somehow