Examine source code of Blue Jam

{
  "theme": {
    "images": {
      "theme_frame": "Copyofjamcopy.jpg"
    },
    "colors": {
      "frame": "#bdbec7",
      "tab_background_text": "#d7f7f4"
    }
  },
  "version": "2.0",
  "name": "Blue Jam",
  "manifest_version": 2,
  "description": "blue jam"
}