MS Teams plan for you to add your own custom background in the future. Interim you can add your own background by following the steps in the video opposite.
C:\Users\your_4_letter_staff_code\AppData\Roaming\Microsoft\Teams\Backgrounds\Uploads
This will be fully supported in MS Teams in the near future.
Access to the folder below of custom BPS backgrounds is restricted at the moment. Contact brta@patana.ac.th for more information.