core/homeassistant/components/motionblinds_ble/icons.json

{
  "entity": {
    "button": {
      "connect": {
        "default": "mdi:bluetooth"
      },
      "disconnect": {
        "default": "mdi:bluetooth-off"
      },
      "favorite": {
        "default": "mdi:star"
      }
    },
    "select": {
      "speed": {
        "default": "mdi:run-fast"
      }
    }
  }
}