Change highlighting color for numbers

[muzimuzhi]

Just for the record, to help others with similar requirements in future.

I saw a question on CTAN's google group, in which OP wanted to change the highlighting color for numbers when pygments style friendly is used.

Under that post, I gave following workaround

\documentclass{article}
\usepackage{minted}
\usemintedstyle{friendly}
\newenvironment{myspec}
  {\VerbatimEnvironment\begin{minted}{haskell}}
  {\end{minted}}


\makeatletter
\newif\ifminted@color@patched

\def\PYGfriendly@change@color{%
  % test if style `friendly` is loaded
  \ifdefined\PYGfriendly@tok@m
    % patch only once since any pygments style is loaded only once
    \ifminted@color@patched
    \else
      \minted@color@patchedtrue
      % redefine highlighting style for token type `mi` (Number.Integer)
      \def\PYGfriendly@tok@mi{%
        \def\PYGfriendly@tc####1{\textcolor{green}{####1}}%
      }%
      % redefine highlighting style for token type `mf` (Number.Float)
      \def\PYGfriendly@tok@mf{%
        \def\PYGfriendly@tc####1{\textcolor{green}{####1}}%
      }%
    \fi
  \fi
}

% append \PYGfriendly@change@color into beginning of `Verbatim` environment
\fvset{codes*={\PYGfriendly@change@color}}
\makeatother

\begin{document}
\begin{myspec}
menuSlideIn = linearTo (menu . width) (For 0.5) (To 75)
appFadeOut = linearTo (obscuringBox . alpha) (For 0.5) (To 0.65)
\end{myspec}
\end{document}

and words

Default color scheme of "friendly" pygments style is hardcoded in
https://github.com/pygments/pygments/blob/master/pygments/styles/friendly.py
and in converted friendly.pygsty located in minted's cache directory.

Here is an example changing color for token types Number.Integer and Number.Float to green.

[example]

• minted use python library pygments to do syntax highlighting. pygments firstly splits code snippet into tokens, then apply a style to highlight it.
• For LaTeX use, every style has a corresponding <style name>.pygsty stored in cache directory used by minted.
• In the friendly.pygsty file, you will find macro definitions for every token type. For example, token type Number.Integer has short name mi, hence its macro definition begins with \expandafter\def\csname PYGfriendly@tok@mi\endcsname .... For a complete list of token types and their short names, see
  https://github.com/pygments/pygments/blob/master/pygments/token.py
• For example, in definition of \PYGfriendly@tok@mi in file friendly.pygsty, you will find the color used is [rgb]{0.25,0.63,0.44}, which corresponds to Number: "#40a070" in source code of friendly style (see its link at the beginning of my reply). You can think Number.Integer is a subtype of Number, hence inherits highlighting style from Number.
• Therefore in LaTeX, to change the color is to redefine the corresponding macro (this is done in macro \PYGfriendly@change@color in my above example), and apply that redefinition after xxx.pygsty is loaded. That's why I use a test \ifdefined\PYGfriendly@tok@m and sets \fvset{codes*={\PYGfriendly@change@color}}.

If you want to change other token (sub)types of Number, you can add redefinitions into \PYGfriendly@change@color by yourself.