Examine source code of AuroraBoredAlice

{
  "name": "AuroraBoredAlice",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "AuroraBoredAlice.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(44, 92, 63, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8469ca5d-4ce3-40e7-9fc5-e55d58dc1b90}"
    }
  }
}