A couple of things I notice right away. state_color: has no value. It requires a boolean (true/false). When set to true, the icon color will change with the state of the entity specified in the entity: parameter which you have left blank.
A couple of things I notice right away. state_color: has no value. It requires a boolean (true/false). When set to true, the icon color will change with the state of the entity specified in the entity: parameter which you have left blank.