core/homeassistant/components/evohome/icons.json

{
  "services": {
    "set_system_mode": {
      "service": "mdi:pencil"
    },
    "reset_system": {
      "service": "mdi:refresh"
    },
    "refresh_system": {
      "service": "mdi:refresh"
    },
    "set_zone_override": {
      "service": "mdi:motion-sensor"
    },
    "clear_zone_override": {
      "service": "mdi:motion-sensor-off"
    }
  }
}