I don't see the color/ size filter after install

After installation, Boost app creates 3 filter options (Product Type, Price, Vendor) by default.  

You can manually create new filter options, such as  Size, Color, etc., using either:

• Product options/vendor/product type
• Product Tags
• Metafield: After using a metafield app to create and manage metafield, you can create filter options with this data.