Examine source code of Endless Galaxy

{
  "name": "Endless Galaxy",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "galaxy.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(235, 30, 174, 1)",
      "tab_line": "rgba(235, 30, 174, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1523547c-ce8e-4d03-99b0-e377e9cc1dbe}"
    }
  }
}