[texhax] custom style sheet

[Michael P. Soulier]

On 29/07/11 Uwe Ziegenhagen said:

> Check the colortbl package.
> 
> http://www.ctan.org/pkg/colortbl

Thanks, although the help examples don't seem to work.

\rowcolor{gray}{.9}

results in 

! LaTeX Error: Undefined color `gray'.

I included the color package but no difference.

Mike