Move your mouse to make black ovals.
Leave the mouse alone for a few seconds to make white ovals.
Click to restart.
NB. This might/probably won’t work unless you’re using a newish browser like Chrome, Safari, Firefox, etc…

Images:

sketch_aug13a-Status_Update_Meetings

sketch_aug13a-Status_Update_Meetings-2

Big thank you to sketchpad for their site.