i personally know only one developer (drh of SQLite fame) who does not like/use syntax highlighting. For most of us, it helps us quickly separate the noise from the code. Some brains don't need that, though, or they find it distracting. Like many around here, my intro to coding was back before syntax highlighting was a real thing, but i'd be loathe to go back to monochrome coding on a day-to-day basis.