For years, I've noticed that many custom game pages have those annoying white backgrounds in every odd row for playlists, reviews, etc. If you have the same issue and want to fix it, here's a solution that worked for me. I'm sure a more savvy programmer will find a more efficient way, but whatevs:
table.listing tr.odd td {
background: none !important;
}
table.listing tr.even td {
background: none !important;
}