Assign a separate colour to each author in the todonotes package

Question

The todonotes package has options for specifying the author name and also an option for specifying the colour of the individual note. However my question is that, is there a provision to set a colour for a specific author?

For instance if I use \todo[author=AK]{simple to do}, it should be equivalent to \todo[author=AK,color=green]{simple to do} and \todo[author=PG]{simple to do}should be equivalent to \todo[author=PG,color=red]{simple to do}.

How exactly can this be achieved?

Answer 1

You can define new meta keys:

\documentclass{article}
\usepackage{todonotes}
\makeatletter
\define@key{todonotes}{AK}[]{%
    \setkeys{todonotes}{author=AK,color=green}}%
\makeatother        
\begin{document}
blub\todo[AK]{something}   
 \end{document}