# Problem with \doublerulesepcolor in colortbl

I would like a table where the background of the first line is gray and the background of the rest of the table is white. The problem is that the table has a double column line. I have tried \doublerulesepcolor but it allows me to put color between the two column lines for ALL the table and not for just the first line.

\documentclass{report}
\usepackage{colortbl}
\begin{document}

\begin{verbatim}
\definecolor{Lightgray}{gray}{.80}
\doublerulesepcolor{Lightgray}
\begin{tabular}[t]{|c|c||c|}\hline
\rowcolor[gray]{.8} CityFrom & CityTo & Count\\\hline
\doublerulesepcolor{white}
a & c & 2\\
a & e & 1\\\hline
\end{tabular}
\end{verbatim}

\begin{center}
\definecolor{Lightgray}{gray}{.80}
\doublerulesepcolor{Lightgray}
\begin{tabular}[t]{|c|c||c|}\hline
\rowcolor[gray]{.8} CityFrom & CityTo & Count\\\hline
\doublerulesepcolor{white}
a & c & 2\\
a & e & 1\\\hline
\end{tabular}
\end{center}

While trying to solve the problem I realized that \verb+\arrayrulecolor+ can be changed at each line
but this not the case with \verb+\doublerulesepcolor+

\begin{verbatim}
\definecolor{Lightgray}{gray}{.80}
\setlength\arrayrulewidth{2pt}
\doublerulesepcolor{Lightgray}
\begin{tabular}[t]{|c|c||c|}\hline
\rowcolor[gray]{.8} CityFrom & CityTo & Count\\\hline
\arrayrulecolor{red}\doublerulesepcolor{red}
a & c & 2\\
\arrayrulecolor{blue}\doublerulesepcolor{blue}
a & e & 1\\\hline
\end{tabular}
\end{verbatim}

\begin{center}
\definecolor{Lightgray}{gray}{.80}
\setlength\arrayrulewidth{2pt}
\doublerulesepcolor{Lightgray}
\begin{tabular}[t]{|c|c||c|}\hline
\rowcolor[gray]{.8} CityFrom & CityTo & Count\\\hline
\arrayrulecolor{red}\doublerulesepcolor{red}
a & c & 2\\
\arrayrulecolor{blue}\doublerulesepcolor{blue}
a & e & 1\\\hline
\end{tabular}
\end{center}

What is needed is that \verb+\doublerulesepcolor+ has a local" behavior as \verb+\arrayrulecolor+.

Any hint how to obtain this ?

Regards

Esteban

\end{document}


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