Image Dimensions
All images should either be exported as a JPG or PNG with a low lossy setting. They will be reprocessed (crunched) automatically in the CMS.
Image Focal Points
Most image fields will allow you to select a “focal point” of an image when it’s uploaded. Selecting an appropriate focal point for an image allows for the desired content of the image to be visible regardless of the device size. By default, the focal point of uploaded images will be the center of the image.
Image focal points can also be updated when being edited.