As you can see from the attached image, R25 won't highlight the following parameter:
[c4d.ID_BASEOBJECT_COLOR]
I'm using this to programmatically change the Display Color of a null, but it doesn't highlight in orange in either the Script Editor (when I type it) or the Script Log (when I manually change the color to trace a call), and since it doesn't recognize it, it throws an error. The same script highlights orange and runs fine in R23. Unless I'm missing something, I believe this is a bug?