as it happens, this was just what I was looking for, hoping to have the brightness and/or rgb_color on the second row.
Since you obviously like this idea @thomasloven, would be it be a viable feature request for the slider-entity-row card to enable the second row and set it on specific attributes?
Would prevent many many user errors!
Looking for something like this:
showing last_changed, or color attributes on the second line. Having the color temp on the badges wouldn’t hurt either, but that might be pushing it a bit 