Feature request from paales, posted on GitHub Jun 21, 2016
Currently using 2.1-rc3.
There is no API available for product option swatches. It makes sense if we are able to use the ProductAttributeOptionManagementInterface
to add new swatch texts to products.
Maybe to have better separation of concerns we could have a ProductAttributeOptionSwatchManagementInterface
to add swatch information to an existing option.