About the Shifter property

The Shifter property contains the indications to re-frame and re-scale the image the image in different ways.

An array of steps are applied to the Master image in the exact order they are specified.

Admisible values are:

- `scale-to`: scale to specific pixel width or scale to specific pixel height. Scaling is proportional.
- `focal-point-crop`: gives you the ability to choose and fine-tune the point of interest of your image for better art direction