On 2013–02–28 Alasdair McAndrew wrote:

> So I've come back to using ConTeXt after a year away from it

Welcome back :)

> \setupbodyfontenvironment[default][em={\slanted\color[red]}]

\setupbodyfontenvironment
  [default]
  [em=slantedred]

\definehighlight
  [slantedred]
  [style=slanted,
   color=red]


Marco