\startenvironment math-layout

\switchtobodyfont  [modern]
\switchtobodyfont  [dejavu]
\switchtobodyfont [cambria]
\switchtobodyfont[lucidaot]
\switchtobodyfont    [xits]

\setupbodyfont
  [pagella]

\setupwhitespace
  [big]

\setuppagenumbering
  [alternative=doublesided]

\setuplayout
  [backspace=2cm,
   width=middle,
   cutspace=2cm,
   topspace=2cm,
   header=2cm,
   height=middle,
   footer=0pt,
   bottomspace=2cm]

\setuplayout
  [backspace=2cm,
   topspace=2cm,
   header=2cm,
   height=middle,
   width=middle]

\setuphead
  [chapter]
  [header=high,
   style=\bfc,
   color=darkmagenta]

\setuphead
  [section]
  [style=\bfb,
   color=darkmagenta]

\setuphead
  [subsection]
  [style=\bfa,
   color=darkmagenta]

\usemodule[abr-02]

\usemodule[x][setups-basics]

\usemodule[visual]

\loadsetups[i-context]

\stopenvironment