Examine source code of dark_forest

{
  "theme": {
    "images": {
      "theme_frame": "darkforest1.jpg"
    },
    "colors": {
      "frame": "#155c0d",
      "tab_background_text": "#155c0d"
    }
  },
  "version": "2.0",
  "name": "dark_forest",
  "manifest_version": 2,
  "description": "it is dark forest....\n\nthis is my first persona!!!!!!!!!\nenjoy it!!!!!!!!"
}