How do you change the font when using fncychap?

Question

I am using fncychap and would like to use a different font for the chapter label than the rest of the document. Is there any easy and general way?

Answer 1

The exact configuration depends on the fncychap style you’re using, but in general, there are a few macros for adapting the style, as described in section 2.1 of the fncychap documentation. The ones for changing the font etc. are \ChNameVar{stuff}, \ChNumVar{stuff} and \ChTitleVar{stuff}. Here’s an example for the style Sonny using pdfLaTeX:

\documentclass[12pt]{report}
\usepackage{xcolor}
\usepackage[T1]{fontenc}
\usepackage[Sonny]{fncychap}
  % defaults:
  %\ChNameVar{\Large\sf}
  %\ChNumVar{\Huge}
  %\ChTitleVar{\Large\sf}
  % custom:
  \ChNameVar{\Large\fontfamily{put}\selectfont\color{blue}}
  \ChNumVar{\Huge\fontfamily{pzc}\selectfont\color{red}}
  \ChTitleVar{\Large\fontfamily{phv}\selectfont\scshape\color{green}}
\begin{document}
\chapter{Hello World!}
Foo bar baz
\end{document}

For some more details on how to change the font and also how to do it with XeLaTeX, LuaLaTeX, or ConTeXt, see How do I use a particular font for a small section of text in my document?.

Also note that in some fncychap styles, variables influence the following variables; e.g. in my example, “Hello World!” and the rules would be red if I hadn’t specified their color. I’m not sure if that’s a bug or intended behavior.