Teachers login and video controls include the option to add a custom background or use a blur.  This can help with privacy (if working from home) and provide a consistent theme for your parent / teacher meetings.  Backgrounds are only available to teachers (not parents)

When you have started a meeting, select the background icon

You can now choose from one of the default backgrounds or add your own.  If you add your own background the image file needs to be a small jpeg at 2880 x 162 pixels.

You will see yourself previewed with the new background image.  Select Apply to update.  Your background setting will be stored for your subsequent meetings (assuming you are using the same browser).  

'Parent view example'