Determines how an image fits within a Bixby Views component.
You can specify one of the following:
Contain - Increases or decreases the size of the image to fill the content box whilst preserving its aspect-ratio.
Cover - The image fills the height and width of its content box, once again maintaining its aspect ratio but often cropping the image in the process. This is the default.
|A value that matches one of the valid enumerated options of its parent key|