가상화폐 아이콘을 무료로 다운받을 수 있는 페이지 주소입니다.

https://github.com/cjdowner/cryptocurrency-icons

라이센스는 CC0 라이센스입니다. 

"

All icons are licensed under the Creative Commons Zero (CC0) license. This means the icons are completely free to be used for any legal purpose.
•The icons are free for personal and even for commercial use.
•You can modify, copy and distribute the icons.
•All without asking for permission or setting a link to the source. So, attribution is not required.
"