Minecraft file for stuck arrows?

Moin Leudeee,

I'm currently working on a texture pack in 1.8.9 and I have now noticed that the arrows in the ground do not have the same design as the arrows in the inventory and therefore I would like to change this design.

But unfortunately I don't know which file I have to edit for this and where I can find this image file. What is the file path for that?

It greets you

a confused one

Probably under the blocks or the entities

Entities would fit. Blocks is not

./textures/entity/