Apply GUI Skin to UI elements in Scene

For example : I have already made a canvas with a few buttons, but I can't change these buttons' skin. As I understand I can only apply GUI Skin with scripting and I have to make all my canvas again in script? So the question is : Can I apply GUI Skin to made canvas without doing everything again?

 

No,

A GUISkin is for imGUI (Calls inside of OnGUI). The uGUI (the stuff you place in the scene view) uses textures. If you want a "skin" you just give the button a texture.

Cheers,

 

And how can I change button textute?

 

Ignore the Serialize Sprite checkbox, it's custom

You just have to mark your texture as a sprite then drag it into your UI component.

 

Thank you very much!

 

Everything had been great till I faced new problem When I changed Source Image of Button's Image component, Source Image was smaller than button's hitbox and now I need to make Source Image the same size as hitbox or vice versa ( I don't know ). Can you help, please ?

 

Thread for this: http://forum.unity3d.com/threads/how-to-change-buttons-hitbox.334452/