Changing the asset url for the Control Panel I'm attempting to get the Control Panel assets to load from a CDN instead of locally from Craft.

Going through the config options here and here I can't seem to find a way to change the asset URL.

Is there any way to change the asset url (in this case for control panel)?
I can't think of a way to do this.

Problem #1: the URLs generated for control panel resources are based on the Craft install's Site URL (whether that's defined in Settings->General or via the config setting and that is taken into account when creating all links in Craft, not just for control panel resources requests.

Problem #2: in Craft 2, all control panel resources are actually served through PHP, not the web server.  I suspect even if you found a way around #1, this would cause separate issues.