Barracuda Flip Top Gas Cap Orientation?

I could be wrong, but in this picture, from this angle, it looks to me like the word fuel follows the Quarter panel and stripe lines...
A little downhill towards the rear not level?
Stripe or no stripe, they all would have been located the same way.
But all I have to go off of are pictures on the world wide web...
¯\_(ツ)_/¯ I guess close will be good'nuff.