Examine source code of c.a.r.c

{
  "theme": {
    "images": {
      "theme_frame": "carc.jpg"
    },
    "colors": {
      "frame": "#2600ff",
      "tab_background_text": "#2200ff"
    }
  },
  "version": "2.0",
  "name": "c.a.r.c",
  "manifest_version": 2
}