Where is that option
Required image format
Your background must be a JPG with square aspect ratio 1:1.
A resolution of at least 1400x1400 is recommended.
Backgrounds with or without zoom
A background without zoom will work as the default background in the seating plan. Your students names and badges will change its size but the background won't.
A background with zoom will change its size along your students'.
Erasing a custom background
Tap and hold on it > Erase
