Examine source code of blue sky

{
  "name": "dragon by dua",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "313371469_527070625570212_5451806324143825932_n.jpg"
    },
    "colors": {
      "frame": "rgba(36, 53, 92, 1)",
      "tab_background_text": "rgba(54, 167, 201, 1)",
      "toolbar": "rgba(216, 237, 240, 1)",
      "bookmark_text": "rgba(94, 143, 132, 1)",
      "toolbar_field": "rgba(235, 235, 235, 1)",
      "toolbar_field_text": "rgba(86, 93, 97, 1)",
      "tab_line": "rgba(67, 126, 163, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c78f4c97-5571-4e35-aee5-b9317f84a035}"
    }
  }
}