How to change icons permanently?

[htchang1987]

If I have an icon which I would like to use on every single folder in mac, which means everytime when I create a new folder it will appear with the icon that I previously chosen to be the icon for my "folder", how can I do this?

Thank you.

 

[EricNau]

I haven't tried it, but...

https://forums.macrumors.com/posts/4526832/

(Note: The icons you're using may require different instructions.)