\environment columnsets-000

\definecolumnset[example][n=3,page=left]

\definecolor[fakerulecolor]

\definecolumnsetspan[wide][n=2,background=contrast,color=white]

\starttext

\startcolumnset[example]

  \startcolumnsetspan[wide]
    \fakewords{25}{50}
  \stopcolumnsetspan

  \fakewords{25}{50}

  \startcolumnsetspan[wide]
    \fakewords{25}{50}
  \stopcolumnsetspan

  \startcolumnsetspan[wide][default=btrl]
    \fakewords{25}{50}
  \stopcolumnsetspan

  \dorecurse{15}{\fakewords{100}{200}\par}

\stopcolumnset

\stoptext