Examine source code of Trilobites

{
  "theme": {
    "images": {
      "theme_frame": "Trilo_3000.jpg"
    },
    "colors": {
      "frame": "#51bd3e",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Trilobites",
  "manifest_version": 2,
  "description": "Trilobites , for people who love the little buggers ."
}