Examine source code of sunset thing

{
  "theme": {
    "images": {
      "theme_frame": "sunsetheader.jpg"
    },
    "colors": {
      "frame": "#ffca29",
      "tab_background_text": "#f52c2c"
    }
  },
  "version": "2.0",
  "name": "sunset thing",
  "manifest_version": 2,
  "description": "i really need to find some thing to do."
}