Sends HTML template editor

Is there any way to have access to Sends HTML templates to make some branding edits?
It don’t look good for any business. External favicon, that syntheticcal texts like

Bitwarden Send
Bitwarden user username@email bla bla
Bitwarden Send sends bla bla marketing.

Copyright footer is ok, but clients dont trust such pages if company sends something without branding or with totally external branding. Same for emails.

Is there any way to add this as option in some future releases, or it is something really hard to make?