Is there some way I can color certain parts of VBA code?

I'm supposed to fold two sets of code changes into one unified code base. While I'm doing this (and the inevitable debugging afterwards), I'd like to identify which prototype a particular piece of code came from.

I could use comments, e.g.

' This came from prototype 1
blah blah blah
blah blah blah
blah blah blah


' This came from prototype 2
blah blah blah
blah blah blah

' This came from prototype 1
blah blah blah

But it would be nicer if I could change the code color, say, green for prototype 1 and blue for prototype 2.

Is this sort of thing possible with VBA?

Thanks!