As of version 7.4.1 and later, all product grid settings are now managed from one space here, under 'Theme Settings' to make a more manageable control point.
Toggle between hidden and visible.
Review stars appear under your product title.
Enabling this will display the Color swatch images function for your customers to use in their selections.
Please see the guide below for more information relating to this:
Similar to the option above, but will display text-based squared Swatches to visually browse between Size variant options for your product in question:
To enable this setting, enter a number that defines low stock for your storefront's inventory.
The indicator only appears when the item’s stock is tracked in the Shopify admin and stock left is equal to or less than the number defined by this setting.