If you have activated the Filter preview images, a configuration page will appear under the Filter preview images tab:
By default, the product image of the first article with the corresponding property in the search result is used as the preview image of an element. If you always want to display a different image for the filter element (e.g. manufacturer logo), you can adjust this via this settings page. All you have to do is enter the name of the filter (1) , the name of the filter element (2) , and an image URL (3) . The case of the filter element does not matter here.