Yes!
Finally! Congratulations!
Thank you all for participating to solve my first riddle on BD!
You are still welcome to discus if you disagree regarding the solution or the riddle itself!
No. Read my previous answer it has nothing to do with paper!
But I understand why you thought of that!
I may have mislead you by not emphasizing that it's not about paper but again it's about shape!
Good luck!
Nice try, but forget about the paper (it has nothing to do with paper) and think about the shape!
Imagine if you could inflate that envelope?
I hope this will help for someone to finally crack it!
I rest my case!
To me it looks like that the red and the blue stripe are going up, but the white one is going down!
No, no they are all going up, but for a second it seamed to me...