Hello,

If you are trying to display the swatches on the product grids then you need to enable the swatch for the attribute and then set the attribute to be displayed as swatch from Theme Settings >> Shop >> Attribute Swatch.

Screenshot for Clarification: https://ibb.co/Jcr9gxJ

You can read our detailed documentation in the following link:
https://xtemos.com/docs/woodmart/variable-products-swatches/

Regards.
Xtemos Studios.