I was opening a Bjam file today and found myself thinking about how intimidating the language looks to most newcomers, until the basics of the syntax are understood. I also thought of what a drag it is to open a bjam file and see monochrome.
So, I used some of the knowledge I gained earlier when I added syntax support for Macaroni to Sublime Text and whipped up a fresh tmLanguage file which colorizes Boost Build files. Thanks to Sublime Text's easy and intuitive nature as well as several helpful tutorials it only took a few hours.
Of course, it isn't perfect- it falls apart on truly complex jam files- but it's better than nothing.