but being the question of the beginner...

[chorodai]

Hello, it was a question, but it made an icon using ImageExtractorⅡ and Photoshop and it imported it but it is made to become no green, that there is nothing in the game.
It will be why?

 

[ElfWarfare]

Set the path right.

so if your icon is named BTNKai
your path is:
ReplaceableTextures\CommandButtons\BTNKai.blp

Then go to object editor and assign the icon to an unit,spell, etc.