Bring back the old thumbnails on layers

These new thumbnails (left pic) are pretty and all but it doesn't help the ease of workflow and the overview of the project. The old thumbnails (right pic) were much more easier to get an overview of and much more easier to copy a color if you needed to do so. now you cant really eyedrop a color from those thumbnails now. at least give us the option to switch between views so we can decide on which thumbnail previews to see.