[tincholio]

Maybe you should take a look here and disabuse yourself of that idea: https://en.wikibooks.org/wiki/LaTeX/Source_Code_Listings

Relevant bit:

    It supports the following programming languages:
    
    ABAP2,4, ACSL, Ada4, Algol4, Ant, Assembler2,4, Awk4, bash, Basic2,4, C#5, C++4, C4, Caml4, Clean, Cobol4, Comal, csh, Delphi, Eiffel, Elan, erlang, Euphoria, Fortran4, GCL, Gnuplot, Haskell, HTML, IDL4, inform, Java4, JVMIS, ksh, Lisp4, Logo, Lua2, make4, Mathematica1,4, Matlab, Mercury, MetaPost, Miranda, Mizar, ML, Modelica3, Modula-2, MuPAD, NASTRAN, Oberon-2, Objective C5 , OCL4, Octave, Oz, Pascal4, Perl, PHP, PL/I, Plasm, POV, Prolog, Promela, Python, R, Reduce, Rexx, RSL, Ruby, S4, SAS, Scilab, sh, SHELXL, Simula4, SQL, tcl4, TeX4, VBScript, Verilog, VHDL4, VRML4, XML, XSLT.
    
    For some of them, several dialects are supported. For more information, refer to the documentation that comes with the package, it should be within your distribution under the name listings-*.dvi.
    
    Notes
    
        1 It supports Mathematica code only if you are typing in plain text format. You can't include *.NB files \lstinputlisting{...} as you could with any other programming language, but Mathematica can export in a pretty-formatted LaTeX source.
        2 Specification of the dialect is mandatory for these languages (e.g. language={[x86masm]Assembler}).
        3 Modelica is supported via the dtsyntax package available here.
        4 For these languages, multiple dialects are supported. C, for example, has ANSI, Handel, Objective and Sharp. See p. 12 of the listings manual for an overview.
        5 Defined as a dialect of another language

If you want to get fancier, and have pygments in your system, you can use the minted package, instead.

[marten-de-vries]

Ah, seems like the situation is better than I remembered. I confused colored syntax highlighting with the default settings, which highlight using font weight/italicness etc.

I did try minted once, but never used it in practice. The dependency on pygments making the documents more system dependent is less than ideal.

[tincholio]

You can of course redefine the default style if you don't like it, but that is no more work than doing the equivalent in CSS (I guesS?) for whatever MD renderer one uses.

I agree that pygments adds a bunch of dependencies, which may be too much just to get some colored syntax highlighting.