Examine source code of caca_greeeeeen

{
  "theme": {
    "images": {
      "theme_frame": "caca_persona.jpg"
    },
    "colors": {
      "frame": "#fce700",
      "tab_background_text": "#e8dc6d"
    }
  },
  "version": "2.0",
  "name": "caca_greeeeeen",
  "manifest_version": 2
}