Examine source code of Togges gameplay

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Togges gameplay",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(225, 234, 239)",
      "toolbar_text": "rgb(56, 146, 196)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(240, 130, 15)",
      "tab_line": "rgb(240, 130, 15)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(43, 116, 147)",
      "icons_attention": "rgb(38, 163, 222)",
      "icons": "rgb(240, 130, 15)",
      "ntp_text": "rgb(146, 149, 146)",
      "popup_highlight_text": "rgb(41, 127, 164)",
      "sidebar_border": "rgb(41, 127, 164)",
      "sidebar_highlight_text": "rgb(43, 116, 147)",
      "sidebar_text": "rgb(43, 116, 147)",
      "tab_text": "rgb(240, 130, 15)",
      "toolbar_field_highlight_text": "rgb(56, 146, 196)",
      "toolbar_field_text_focus": "rgb(240, 130, 15)",
      "tab_loading": "rgb(240, 130, 15)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6bf077d2-8b63-424a-841f-49d8dbb77a0f}"
    }
  }
}