Yes. You can alter them to Your company logos.
To alter the main icon You only have to alter main.ico in used skins.
This icon overrides the one in the exe.
You also can alter the icon in the exe.
Logo.gif of the about: page is in CHROME\Embed.jar\embed\content\global\
about.xhtml in the same folder contains what You cannot change while You use an identical version.
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