[
  [
    {
      "namespace": "signal",
      "name": "bar_color",
      "scope": [],
      "value": "yellow"
    },
    {
      "namespace": "signal",
      "name": "padding_factor",
      "scope": [],
      "value": 10
    }
  ],
  [
    {
      "namespace": "signal",
      "name": "bar_color",
      "scope": [],
      "value": "green"
    },
    {
      "namespace": "signal",
      "name": "padding_factor",
      "scope": [],
      "value": 50
    }
  ]
]