I want to create a BC-clone/fork. And need change
bitcoin.icns Thats what i assumed. But, without offending you, i don't think your fork will be somehow innovative/valuable.
There is a lot of expertise necessary to improve the bitcoin protocol with a hard fork.
Im not quite sure how you can bring that much improvements into it without googling the .icns extension first
It might be better for you to create an ERC20 token on ethereum. There are lots of tutorials available on the
internet.