On products with multiple sizes or colors, I’m using “Size” or “Color” as Option Name, to generate variants.
On products that come in a single size or color, I defined “Size” and “Color” as Metafields, so I can describe the product and it can be searched by those attributes.
When mixing those 2 kinds of products in the same collection or page, the search form shows those filters twice, which is cumbersome.
How can I have a single “Color” filter, that could match products with a Color variant, and products with a single Color definition stored as a metafield?