Examine source code of the shark

{
  "name": "the shark",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "index.jpg"
    },
    "colors": {
      "frame": "rgba(49, 68, 112, 1)",
      "tab_background_text": "rgba(60, 194, 217, 1)",
      "toolbar": "rgba(114, 181, 201, 1)",
      "bookmark_text": "rgba(39, 193, 240, 0.8)",
      "toolbar_field": "rgba(142, 200, 204, 1)",
      "toolbar_field_text": "rgba(242, 0, 0, 1)",
      "tab_line": "rgba(163, 212, 230, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{17f8dd1a-7446-46a7-8118-af2f564d536d}"
    }
  }
}