Change default icon of buttons on toolbar of CKEditor

How do I can change the default icon of button on toolbar of CKEditor开发者_如何学运维 my my owns?

Thanks.

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If you need to modify one of the default icons (not a plugin's) you can modify skins\[name of your skin]\icons.png (suggested here)

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Look into plugins folder - source code is there with links to images, just replace those with yours.