{Through the looking glass, and what Joseph found there}
{Joseph Wright}
{The \LaTeX3 programming language, \code{expl3}, has grown over the past
decade to form a strong and stable environment for solving problems in
\TeX. A key aim is to grow this work to cover a wider range of areas. In
recent work, the team have been building on the existing code, and in
particular the expandable \acro{FPU}, to develop approaches to color,
drawing and image support.  In this talk, I will look at why this work
is useful, what models we can work from and where the work has taken us
so~far.}