system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why we don't paint on our airplanes like we did during WWII

I recently saw some WWII planes and I saw the unique, pin up, and fighter style designs. What changed from when that was okay do to, and now it doesn't?

EDIT: I realized I used "us" to refer to the Americans, I forgot that Reddit is a global website, my apologizes.
gpt
For one thing, some modern combat aircraft are designed for reduced radar cross section (i.e. stealth) and part of that is specific paint.  It would kind of suck if the hot pinup girl on your F-22 doubled its radar cross section.