Banner in Minecraft?

Can you tell me where in the Minecraft folder I can find the banner? So under painting, item, gui or something?

The file path would be fine with me too!

Sincerely yours,

Alexander.

P. S under items I find nothing!

Under \ assets \ minecraft \ textures \ gui \ title

But with me there's only:
background (folder)
edition (picture)
minecraft (picture)
mojangstudios (picture)
I mean the colored banners, so red, yellow, or something!

Oh, I wasn't sure what was meant. The banner textures can be found under / assets \ minecraft \ textures \ entity \ banner

Thank you very much!