Defines all allowed crop aspect ratios. The crop ratio cards are shown in the given order.
Decide if the categories should be grouped in a collapsible section or should be grouped under a text heading.
Decides whether flip is enabled
Decides whether rotation is enabled
Whether categories should be flattened which effectively hides the categories. If this is enabled all crop ratios will be shown in the top-level of the transform selection tool ordered according to their parent category.