Adding a default theme and footer to your Team is a great way to keep your organisation's branding consistent across all learning modules.
You must be a Team Administrator to edit your team's settings.
From the main menu, choose Settings:
Once in settings, you can choose Change to edit the default theme.
If you haven't already set up a theme in your organisation's branding/colours etc. you can read how to do this here.
You can also edit your Team name and default footer through settings, as pictured below.