Examine source code of Exploding Stars

{
  "name": "Exploding  Stars",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "ExplodingStarsH.jpg"
    },
    "colors": {
      "frame": "rgba(4, 28, 71, 1)",
      "tab_background_text": "rgba(255, 235, 235, 1)",
      "toolbar": "rgba(4, 26, 71, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(4, 26, 71, 0.1)",
      "toolbar_field_text": "rgba(255, 242, 242, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{51a361a5-c2c8-403a-a668-2ebb6e38f364}"
    }
  }
}