Thanks.
I'm going to see if they will send a physical swatch of fabric.
I've looked at this post on my phone, home desktop and work desktop, and the swatches look totally different on each.
I think you are right about fading.
I regret not taking photos of the ends of the headliner that were behind the seat back.
It was darker and more blue.
I can always fish the fabric end out from behind the seat back with a pick (its not like I have to worry about damaging it).