Hello,

This is the Woocommerce functionality, our theme us just an appearance.

You can show one attribute in the product grid: https://gyazo.com/e141049bfaac9dfeab545e18d72f3ca0

This option: Theme Settings > Shop > Attribute swatches > Grid swatch attribute to display determine which one to show globally. It means that if you chose pa_color, color swatches would be shown by default.

At the same time, the product page has the option: Grid swatch attribute to display and the drop-down selection, allowing you to choose an attribute that will be shown on the products grid for this particular product: https://xtemos.com/docs/woodmart/product-page-options/#local_settings

If you have any questions please feel free to contact us.

Best Regards