Face for operators such as = * / separate from type face

[kauesena]

There should perhaps be a face for types and a face for symbols such as +=-^/*: which act as operators so that they would not have necessarily the same colour as types.

function quadratic2(a::Float64, b::Float64, c::Float64)
    # in emacs Float64 and = ^ - * are coloured the same
    sqr_term = sqrt(b^2-4a*c)
    r1 = quadratic(a, sqr_term, b)
    r2 = quadratic(a, -sqr_term, b)
    r1, r2
end

[tpapp]

I have nothing against customizability of these typefaces per se if there is a demand, but note that operators and types are rarely adjacent in code so I am not sure I understand why having the same color is a problem.

Generally themes try to make do with 8-10 "base" colors for text, simply because adding more just crowds the color space so they become hard to distinguish anyway.

So I would suggest the following: let's wait a month to hear from others, and if there are no objections then we can add a face.

[kauesena]

@tpapp. As there hasn't been any contrary comment, do you find it okay to add the faces?

[tpapp]

A PR is welcome. Note that we enumerate operators already in julia-hanging-operator-regexp, so a list could easily be factored out to avoid duplication.

[kauesena]

I'll bear that in mind.