Is it possible to change the logo in the login page of HA companion android app? Where can I find the login page (authentication) code file?
There are 2.
The first one, you would have to recompile the app to change it.
The second one, you would have to rebuild the HA frontend.
Definitely not worth the hassle…
if you run a proxy in front of HA, you can serve any image you want in lieu of the logo image.