Remove alternating line colors in Mobi

Looking at a webi report on the ipod, the mobile version table has alternating line colors. In the Graphite viewing option the rows alternate between a dark gray shade and a lighter gray shade. My users want each line to be the same color. I've tried shutting off the alternate line shading in Webi, and it does disappear from Webi. But the alternate shading still shows up on the mobile device. Does anyone know how to format all rows as one shade on Mobile?