I an trying to use \definehighlight to define a macro that will color and overstrike selected text.

Thus far,

\definehighlight[Delete][color=red,style={\overstrike}]

\starttext

test  \Delete{test} test

\stoptext

reports

! Too many }'s.

system          > tex > error on line 4 in file ...TEST.tex: Too many }'s ...

If I replace “\overstrike” with “bold”, “\Delete” works. “\overstrike” works otherwise, so am I trying the impossible here?