> Or another, I found that syntax highlighting is neat but what is really helpful instead is to give any identifiers in functions different colors, which makes

> Or another, I found that syntax highlighting is neat but what is really helpful instead is to give any identifiers in functions different colors, which makes the data flow in the function much more salient and quicker to understand - including spelling mistakes. And that works in many languages. Oh yeah, I just discovered rainbow-identifiers-mode. Pretty sweet!