With the colortbl package, the optional overhang argument seems to be ignored when using \cellcolor. E.g., \cellcolor{red}[0pt] content prints [0pt] content into the corresponding table cell.
BTW, I'm not sure whether overhang specs are supposed to work with \cellcolor, but it isn't evident from the documentation that they shouldn't.
With the
colortblpackage, the optional overhang argument seems to be ignored when using\cellcolor. E.g.,\cellcolor{red}[0pt] contentprints[0pt] contentinto the corresponding table cell.BTW, I'm not sure whether overhang specs are supposed to work with
\cellcolor, but it isn't evident from the documentation that they shouldn't.