Easy way to add custom branding

[alexander-sil]

Is your feature request related to a problem? Please describe.
Yes. I want to disguise a Supermium installation as a custom browser with a custom name and my own icon, for use in my own case.

Describe the solution you'd like
A simple GUI/CLI tool to change instances of "Supermium" to something else, edit the About page information mentioning Supermium in chrome:// and replace icons with my own ones.

Describe alternatives you've considered
I cannot add my own branding manually, since the codebase is virtually tremendous, and it is difficult to find out what each file is responsible for without C++ konwledge.

Additional context
I think what I have laid out above is enough to understand my issue. If not, please comment. Thank you.