Questions on how to make some changes in WPForo

1. How can I customize the email that is sent to a user after they register for the site?

Currently, it reads:

Hi xxxx-xxxx, Your registration for XYZ FORUM has now been approved. You can log in, using your username and password that you created when registering for our website, at the following URL: https://XYZ/forum/ If you have any questions or problems, then please do not hesitate to contact our webmaster at XYZ@ZYZ.com and provide complete details as well as your first and last name and additional contact information. XYZ Network https://XYZ.com

I'm not sure where and how it's pulling the "webmaster at ZYZ.com" info?
Also, where it is pulling the last XYZ Network https://XYZ.com part?

2. On the Profile pages (for WPForo members) can I set a default background image that shows up blurry, behind the member's name, group, joined date, and status? I was thinking I'd like to always have the same background image if this is possible?

3. On the Profile pages (for WPForo members) can I hide the "Group: Moderator" and "Joined: date" and "Active Member" information? Is there a way I can selectively choose what to hide and display on the profile page when it comes to this information?

4. On the Profile pages (for WPForo members) can I remove the /admin or /moderator, etc. after the member's name? I'd like to just display their name. Is it possible to just display the member's name without the /admin, etc. after it? I guess you would call this their "role" so I just want to hide this. How?

Thanks,
Gary