Pixelfed – is it possible to add a custom logo & favicon on Cloudron?

[archos]

Hi,
I’m hosting Pixelfed on Cloudron and I’d like to add a custom logo and favicon.
I’m not sure if this is even possible without modifying the app code, and I don’t want to break anything or do unsupported changes.

Is there an official or recommended way on Cloudron to brand Pixelfed (logo, favicon, small UI changes)?
Or is this considered a code modification that Cloudron doesn’t allow?

Any advice would be greatly appreciated.
Thank you!