Ok, tried to buy the Patron Pack but got...
"No need to upgrade, we have your back! We plan to give you all the new items for free under certain conditions, please refer to the dedicated F.A.Q for more info."
Clicking on the FAQ...
If you have backed the project during the Kickstarter campaign, or if you’ve pledged for a Founder Pack on our previous website, you will be granted the items (both digital and physical, depending on the Founder Pack you pledged for) of the equivalent Supporter Pack for free.
For example, that means that if you had pledged for a Silver package you will receive all exclusive items included in the Traveler Supporter package in addition to the rewards promised in the Silver package.
But you said I only get some of the stuff in the Sponsor Pack cuz I'm a Gold Backer? Above, it's saying I get everything. See why this is so confusing.