{Martin Ruckert}
{The color concept of Hi\TeX}
{One of the first feature requests for Hi\TeX\ was colored text.
Looking at the existing packages supporting colored text, it
appears that their design was influenced if not limited significantly
by the features provided by the \TeX\ engine, like \cs{special}, and the
features provided by the output format, namely \PDF.

Since Hi\TeX\ has its own engine, its own output format, and its
own viewing applications, it was possible to start a new design from
scratch without such limitations, but not without conflicting design
objectives. The new design should be simple, flexible, and powerful;
it should be easy to understand and easy to implement;
and it should be possible to support the existing color packages
with only a limited implementation effort for a driver file.

It is planed to include the color support for Hi\TeX\ in the 2025
edition of \TeX\ Live. This talk is the first public presentation of
it and I hope to solicit feedback and suggestions for changes.}