Board Thread:Support Requests - Designing Your Wikia/@comment-25631483-20150826230210/@comment-4731443-20150827171203

Yes, support requests for portable infoboxes can be made here: Thread:841717

In the meantime, you could see if this workaround works for you: Link

You may want to read the section above it first for context, but essentially it suggests counting your rows from the end if your optional rows are at the top of your infobox, or using tags to differentiate the rows you want to color since they will likely be easier to locate.