Examine source code of Reaver

{
  "name": "Reaver",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "theme_tab_background.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.68)",
      "toolbar_field_text": "rgba(184, 134, 134, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{12f78964-c381-4816-b834-f65ed1d53bfe}"
    }
  }
}