The Multi-Photo field is used to capture one or more photos, such as photos to show the repair you made or details of what needs to be fixed.
In the field settings the "Allow Camera" is selected by default allowing the user to capture a photo in the app. You can also enable the "Allow Photo Library" setting which will allow the user upload a photo from their device. Additionally in the field settings you can set the quality of the photo, JpgNormal being the lowest quality and PNG being the highest quality. When adjusting the quality settings, please keep in mind that the photo's quality will affect the user's total submission time, as larger files may take longer to upload.