core/homeassistant/components/yamaha/icons.json

{
  "services": {
    "enable_output": {
      "service": "mdi:audio-input-stereo-minijack"
    },
    "menu_cursor": {
      "service": "mdi:cursor-default"
    },
    "select_scene": {
      "service": "mdi:palette"
    }
  }
}