I'd do 3 greys, from lightest to darkest: comments, syntactical cruft like braces, semicolons, certain keywords, etc., and then 'actual' code, variable names an

I'd do 3 greys, from lightest to darkest: comments, syntactical cruft like braces, semicolons, certain keywords, etc., and then 'actual' code, variable names and so on. Much more variation than that with 256 colours is mostly just making it pretty rather than offering helpful distinction imo.