Examine source code of Tangram - Animals

{
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    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ff0000"
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  },
  "version": "2.0",
  "name": "Tangram - Animals",
  "manifest_version": 2,
  "description": "The tangram is a dissection puzzle consisting of seven flat shapes. The objective of the puzzle is to form a specific shape (given only an outline or silhouette) using all seven pieces, which may not overlap. It is reputed to have been invented in China during the Song Dynasty. A Chinese psychologist has termed the tangram \"the earliest psychological test in the world\", albeit one made for entertainment rather than analysis.\nSource : <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/3bed1033dfd97129f7386ed41d71c3e3ed364a0ef35f3a54383bca59ebf06117/http%3A//en.wikipedia.org/wiki/Tangram\">http://en.wikipedia.org/wiki/Tangram</a>"
}