Is there any way to update Tile icon (image) for a classic dashboard displayed as a Fluid Tile

We have a set of 27 pagelets built upon PSQuery in our old 9.1 environment. All pagelets displayed results directly on a single page. In 9.2, we do not want to create 27 tiles for each pagelet. For time being we created a classic dashboard to host all 27 pagelets and have chosen parent folder in (Fluid Structure and Content - Fluid Pages - Custom Folder) so that we can publish dashboard as a tile. Everything worked well so far. But I couldn't find a way to update Tile icon on the Classic Dashboard tile as Fluid Attributes is missing