Glance card and state_color

I have a number of X10 switches, using heyu to control them. Because each switch can be toggled manually, the state of the switch in HA may be not be the same as the actual switch. So I want to use radioboxes, not sliders or buttons, in HA and not have them show the state or change color when tapped.

I’m using a glance card, with this code for two switches:

type: glance
columns: 2
entities:
  - entity: switch.ceiling_lights
    tap_action:
      action: call-service
      service: switch.turn_off
      service_data:
        entity_id: switch.ceiling_lights
    name: Ceiling Lights Off
    show_state: false
    state_color: false
    icon: mdi:radiobox-blank
  - entity: switch.ceiling_lights
    tap_action:
      action: call-service
      service: switch.turn_on
      service_data:
        entity_id: switch.ceiling_lights
    name: Ceiling Lights On
    show_state: false
    state_color: false
    icon: mdi:radiobox-marked
  - entity: switch.ceiling_fan
    tap_action:
      action: call-service
      service: switch.turn_off
      service_data:
        entity_id: switch.ceiling_fan
    name: Ceiling Fan Off
    show_state: false
    state_color: false
    icon: mdi:radiobox-blank
  - entity: switch.ceiling_fan
    tap_action:
      action: call-service
      service: switch.turn_on
      service_data:
        entity_id: switch.ceiling_fan
    name: Ceiling Fan On
    show_state: false
    state_color: false
    icon: mdi:radiobox-marked

which gives me this card:
Capture
This is what I wanted, except that when I tap an On box, both icons change color to yellow. I have state_color set to false for each entity so why do the icons change color, and how can I stop that? Thanks.