How do I change my client's profile picture in my files?

You can pick and choose which photo to use as your client's profile picture in your files.

Open up your client's file and go to their image gallery
Open the photo of choice
Tap the top-right star icon to set the photo to the profile picture.

If no photo is selected, Jupiter will automatically sync and show their Google Account's profile picture or a blue square with the client's initials if none is available.