Examine source code of Cat and Dog

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "__MSG_appName__",
  "short_name": "Awesome theme for Atavi.com",
  "link": "http://atavi.com/browser-themes/",
  "version": "1.6",
  "manifest_version": 2,
  "description": "__MSG_appDesc__",
  "default_locale": "ru",
  "app": {
    "urls": [
      "http://atavi.com/browser-themes/"
    ],
    "launch": {
      "web_url": "http://atavi.com/browser-themes/?from=chrome-themes&tid=cat_and_dog"
    }
  },
  "theme": {
    "images": {
      "theme_ntp_background": "images/theme_ntp_background.png",
      "theme_frame": "images/theme_frame.png",
      "theme_toolbar": "images/theme_toolbar.png",
      "theme_tab_background": "images/theme_tab_background.png"
    },
    "colors": {
      "tab_text": [
        0,
        0,
        0
      ],
      "tab_background_text": [
        0,
        0,
        0
      ],
      "bookmark_text": [
        0,
        0,
        0
      ],
      "frame": [
        230,
        230,
        230
      ],
      "ntp_text": [
        0,
        0,
        0
      ],
      "ntp_link": [
        0,
        0,
        0
      ],
      "ntp_link_underline": [
        0,
        0,
        0
      ],
      "toolbar": [
        228,
        228,
        228,
        0.6
      ],
      "ntp_background": [
        255,
        255,
        255
      ]
    },
    "properties": {
      "ntp_background_repeat": "no-repeat",
      "ntp_background_alignment": "middle"
    }
  }
}