This is syntax highlighting in for CPU32 instruction set on Easy68k. It could also be used for Easy68k.

Here is an image of what it looks like with some assembly code. 

You can send pull requests via GitHub. Do not edit the CPU32.tmLanguage file directly. Edit the CPU32.JSON-tmLanguage file instead and build the .tmLanguage file from it using the JSON to Property List build tool in AAAPackageDev.