Examine source code of Blue Story

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue Story",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(20, 22, 34)",
      "toolbar_text": "rgb(178, 178, 178)",
      "frame": "rgb(20, 22, 34)",
      "tab_background_text": "rgb(178, 178, 178)",
      "toolbar_field": "rgb(20, 22, 34)",
      "toolbar_field_text": "rgb(178, 178, 178)",
      "tab_line": "rgb(36, 32, 80)",
      "popup": "rgb(20, 22, 34)",
      "popup_text": "rgb(178, 178, 178)",
      "ntp_background": "rgb(20, 22, 34)",
      "tab_selected": "rgb(36, 32, 80)",
      "tab_loading": "rgb(36, 32, 80)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f62743e2-bae1-4b00-ad9c-68163f7fb950}"
    }
  }
}