Scaleable image fields or 'Fill proportionately'
Current image fields allows for entering a user specified image, but no ability to crop the image to fill the space proportionately.
When I create an an image field, I can currently specify that the user defined image fill to the bounds disproportionately (squashed to fit) or filling the space to the image's largest edge, but lacks the ability (like Indesign) to ‘fill space proportionately’ which results in the image being set to the outer limits of the frame and anything else being automatically masked.
I can see this working under the current system, specifically where the placement of the image can be moved about in the advanced settings. All that is lacking would be a scale handle or dialog box to enter a percentage scale.
This is similar to many online avatar creators where you can upload an image and then enlarge or move the image within the defined cropping.
As a designer, controlling the proportions and placements of images entered in user forms is pretty crucial. My only work around at the moment is to create boxes to the exact proportions of my end users camera, which is not always controllable.