[
  // Escape key.
  {
    "type": "escape",
    "width": 64,
    "align": "left"
  },
  // Keyboard illumination.
  {
    "type": "illuminationDown",
    "width": 64,
    "align": "right"
  },
  {
    "type": "illuminationUp",
    "width": 64,
    "align": "right"
  },
  // Brightness.
  {
    "type": "brightnessDown",
    "width": 64,
    "align": "right"
  },
  {
    "type": "brightness",
    "width": 72,
    "align": "right",
    "image": {
      "base64": "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"
    }
  },
  {
    "type": "brightnessUp",
    "width": 64,
    "align": "right"
  },
  // Spotify.
  {
    "type": "appleScriptTitledButton",
    "source": {
      "inline": "if application \"Spotify\" is running then\rtell application \"Spotify\"\rif player state is playing then\rreturn (get artist of current track) & \" – \" & (get name of current track)\relse\rreturn \"\"\rend if\rend tell\rend if\rreturn \"\"\r"
    },
    "action": "appleScript",
    "actionAppleScript": {
      "inline": "if application \"Spotify\" is running then\rtell application \"Spotify\"\rif player state is playing then\rnext track\rend if\rend tell\rend if\r"
    },
    "refreshInterval": 1,
    "image": {
      "base64": "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"
    },
    "width": 120,
    "align": "right"
  },
  // Music controls.
  {
    "type": "previous",
    "width": 64,
    "align": "right"
  },
  {
    "type": "play",
    "width": 64,
    "align": "right"
  },
  {
    "type": "next",
    "width": 64,
    "align": "right"
  },
  // Volume.
  {
    "type": "volumeDown",
    "width": 64,
    "align": "right"
  },
  {
    "type": "volume",
    "width": 72,
    "align": "right"
  },
  {
    "type": "volumeUp",
    "width": 64,
    "align": "right"
  },
  // Lock screen.
  {
    "type": "staticButton",
    "title": "🔒",
    "action": "appleScript",
    "actionAppleScript": {
      "inline": "tell application \"System Events\" to keystroke \"q\" using {control down, command down}"
    },
    "width": 64,
    "align": "right"
  }
]