Examine source code of Sherk the Third

{
  "theme": {
    "images": {
      "theme_frame": "Sherk-Header.jpg"
    },
    "colors": {
      "frame": "#34a315",
      "tab_background_text": "#34a315"
    }
  },
  "version": "2.0",
  "name": "Sherk the Third",
  "manifest_version": 2,
  "description": "Sherk the Third includes \nMike Myers-Shrek \nEddie Murphy-Donkey\nCameron Diaz-Princess Fiona\nand the Babies"
}