\setupbackgrounds [page] [background={color,content}]
\defineoverlay [content] [\overlaybutton{contents}]
\setupinteraction [menu=off]

\startstandardmakeup
  \setupalign[middle]
  \startcolor[ColorP]
  \definefont[test][TitleFont at 130pt] \test \setupinterlinespace
  \strut PDF\kern.1em\TeX
  \definefont[test][TitleFont at  60pt] \test \setupinterlinespace
  \vfill
  users manual
  \vfill
  \definefont[test][TitleFont at  15pt] \test \setupinterlinespace
  \leavevmode
  \gotobox{\strut \underbar{H\`an Th\^e Th\`anh}}[url(thanh)]\quad
  \gotobox{\strut Sebastian Rahtz}[url(sebastian)]\quad
  \gotobox{\strut Hans Hagen}[url(hans)]\quad
  \gotobox{\strut Hartmut Henkel}[url(hartmut)]
  \vfill
  \stopcolor
\stopstandardmakeup

\setupinteraction [menu=on]
\setupbackgrounds [page] [background=color]

