If you're interested, these overrides might get you started. I tried it with a local css and the alternating row colors were IMHO easier to scan. Probably goes here:
Admin CP → Appearance → Templates → EXTRA.css
[CODE]
/*Forum List*/
.nodeList li.level_2:nth-child(even) .primaryContent {
background: #f8f7f8 !important;
}
.nodeList li.level_2:nth-child(even) .primaryContent div {
background: none !important;
border: none !important;
}
/*Thread List*/
.discussionList li.discussionListItem:nth-child(even) {
background: #f8f7f8 !important;
}
.discussionList li.discussionListItem:nth-child(even) div {
background: none !important;
}
/*Posts in a Thread*/
.messageList li.message:nth-child(even) {
background: #f8f7f8 !important;
}
.messageList li.message:nth-child(even) div {
background: none !important;
}
[/CODE]