\startenvironment texit-style

\setupbodyfont
  [dejavu,11pt]

\setuphead
  [chapter]
  [style=\bfc,
   header=empty,
   color=darkgray]

\setuplist
  [chapter]
  [alternative=c,
   width=1.5em]

\setuplayout
 [width=middle,
  height=middle,
  topspace=15mm,
  backspace=15mm,
  header=15mm,
  footer=0mm]

\setupwhitespace
  [big]

\setupheadertexts
  []

\setupheadertexts
  []
  [{\getmarking[chapter]\quad\pagenumber}]
  [{\pagenumber\quad\getmarking[chapter]}]
  []

\setupheader
  [style=\bf,
   color=darkgray]

% \setuptype
%   [color=darkred]

% \setuptyping
%   [color=darkred]

\setuppagenumbering
  [alternative=doublesided]

\usemodule[scite]

\stopenvironment
