1
In the play gallery, tap the "i" icon in the toolbar
2
Choose a Field Lines background
3
Tap the green checkmark in the upper right corner to finish
The field color will always appear white in printed playbooks, but you can change the background in the app to suit your lighting conditions and preferences:
1
Tap a play to open it, then tap the field icon in the toolbar
2
Choose between dark and light background options
3
Tap the green checkmark in the upper right corner to finish