This design implementation allows option swatches to be displayed within refinement filters to allow for a more visual method of refining a result set.
How does it work?
When an option set has been activated to be used as a swatch set and, images have been added, the 'Refine Results' filter will display the associated images within that group.
This feature is available to all users, but you will need to contact support for this to be enabled, a design amendment will be required for this to display correctly. You can also choose to have images with or without text.
You may have your options or option set disabled from the filters, if so this can be enabled by;
Within the option set section with the 'Green Fork Arrow'
Under Settings > Ordering > Product Filtering Order - to enable 'ALL' options.
Your website filters may also require a design amendment to allow for the new functionality.