The room card widget provides a quick overview for many states in one room and is fully configurable.
You can use a background image and you may use a header.
Color scheme and opacity is fully configurable for the columns.
The widget can display up to three columns of data, each data field can and has to be configured:
Humidity and illumination
Current temperature, target temperature (in braces), heating & cooling state
Lights state (on/off + number of lights on), windows/doors (for each open/closed + number of open), one or two blinds position, speaker state