The rules not clear in the plain text of Amazon’s guidelines (as with all things Amazon). Technically, you can only use the images Amazon supplies, no additional text, etc. The only way to be 100% certain, is to have your lawyers meet with Amazon’s lawyers and get an agreement on paper. The reps will not give you a thumbs up or down if you ask, as it’s always better to have everyone in technical non-compliance.
Are my sites in full compliance? No. Am I sending business to Amazon and they don’t care enough to nitpick my use of the IP because it’s close enough? So far, yes. Would I ask Amazon about compliance, thereby popping up on their radar? Nope. Here’s a good post on the subject: