I know about and have used the rather convoluted, command line approach to changing the logo. I just envision a basic configuration page in Server admin where you can change font type and size, background colors and upload a logo image directly. You know, the most basic settings that nearly all pre-built websites provide.
the only other option I know of, but is quite hacky is to override the CSS file somewhere on the server. I have found it before, but don't remember where.
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