Defines the size of the background.
| Property | Description |
|---|---|
| Length | Determines if the size of the background image comes from the BackgroundSize.x and BackgroundSize.y length values. |
| Cover | Resize the background image to cover the entire container, even if it has to stretch the image or cut a little bit off one of the edges. |
| Contain | Resize the background image to make sure the image is fully visible. |