\startenvironment hybrid-environment

% \showgrid[outer,lines]
% \showgrid

\usemodule[abr-02,chart,narrowtt]

\starttypescript [hybrid]
    \definetypeface [hybrid] [rm] [serif] [bookman] [default]
    \definetypeface [hybrid] [ss] [sans]  [dejavu]  [default] [rscale=0.9]
    \definetypeface [hybrid] [tt] [mono]  [dejavu]  [default] [rscale=0.9]
    \definetypeface [hybrid] [mm] [math]  [xits]    [default] [rscale=1.00]
\stoptypescript

\setupbodyfont[hybrid]

\setupFLOWcharts
  [offset=\zeropoint,
   dx=1.2\bodyfontsize,
   dy=1.2\bodyfontsize,
   height=2\bodyfontsize,
   width=7\bodyfontsize]

\setupFLOWshapes
  [framecolor=blue]

\setupFLOWlines
  [color=red]

\abbreviation[METAPOST]{MetaPost}{}
\abbreviation[EPUB]    {Epub}    {}

\setuplayout
  [width=middle,
   height=middle,
   header=0cm,
   topspace=2cm,
   bottomspace=1cm,
   footer=1cm,
   footerdistance=.5cm]

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

\setuppagenumbering
  [alternative=doublesided]

\setupfooter
  [color=blue,
   style=\dontconvertfont\bf]

\setuplayout
  [grid=tolerant] % we need a test

\setupformulas
  [grid=min]

\setupwhitespace
  [big]

\setuphead
  [chapter]
  [before=,
   after={\blank[2*big]},
   style=\bfc,
   color=blue]

\setuphead
  [section]
  [before={\blank[2*big]},
   after=\blank,
   style=\bfb,
   color=blue]

\setuphead
  [subsection]
  [before=\blank,
   after=\blank,
   style=\bfa,
   color=blue]

% grid settings

% none will effectively smash the box to one line (zero inner) but is the same as strut as outer will snap
% however you can use {none,top:3} to move it down 3 lines then
% {local,strut} will use the style related settings and move one line down because the font is larger

\setuphead
  [chapter]
  [grid=none]

\setuphead
  [section]
  [grid=none]

\setuphead
  [subsection]
  [grid=none]

% so far

\setupitemgroup
  [itemize]
  [each]
  [color=blue,
   symcolor=blue]

\setuptyping
  [color=blue]

\setuptype
  [color=blue]

\definecolor[red]    [r=.4]
\definecolor[green]  [g=.4]
\definecolor[blue]   [b=.4]
\definecolor[yellow] [r=.4,g=.4]
\definecolor[gray]   [s=.6]

\setupcaptions
  [color=blue]

\setupexternalfigures
  [location={local,default}]

\stopenvironment