Two Tone Paint On Door Interior and a Windshield Banner Question

[0F0 CBR]

Hi
I was hoping to get some help on a couple of questions I have.
On my 1980 Cobra it came with Two Tone paint and Road Abrasion.
The outside of door and the door frame is split color, red and black, but the inside of the doors are solid red.
It has been painted and I am wondering if it was done correctly.





Could someone post a picture of their original paint two tone door interior?

My second question is regarding the windshield banner on my car when I got it in 1988.
It had a white lettered "MUSTANG" banner across the top of the windshield.
As it was all cracked and yellowing I scraped it off with a razor blade. It was individual painted letters not a solid decal.
I was left with a very cool "MUSTANG" darker tint at the top of my windshield, likely because it did not fade at the same rate.
I figured over time it would fade out, but it has not.







Has anyone ever seen this before? Is it factory, dealer option or something 80's aftermarket?