Examine source code of Lapis Lazuli

{
  "name": "Lapis Lazuli",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "1x1-00000000.png"
    },
    "colors": {
      "frame": "rgba(8, 75, 131, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(11, 100, 173, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(10, 89, 153, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b6fd7674-ac4d-4599-ae67-6d49c9e36f8e}"
    }
  }
}