Examine source code of sum41grey

{
  "theme": {
    "images": {
      "theme_frame": "discography_d.jpg"
    },
    "colors": {
      "frame": "#ffe400",
      "tab_background_text": "#ffe400"
    }
  },
  "version": "2.0",
  "name": "sum41grey",
  "manifest_version": 2,
  "description": "sum41"
}