You can change a theme profile at any time.
Open the profile
Go to Themes > Theme Profiles, pick the competition, and click the profile. Or:
Open the competition and go to its Theme Profiles tab, then click Edit profile.
What you can change
The look: on GRAPHICS & STYLES, change theme or graphic settings.
The details: on DETAILS & SETTINGS, change the name, competition, game plan or control room.
Save your changes when you're done.
Tip: If a match is already set up and doesn't show your changes, refresh its overlay.