Examine source code of bagbag

{
  "theme": {
    "images": {
      "theme_frame": "BAG_PERSONAS.jpg"
    },
    "colors": {
      "frame": "#0c2330",
      "tab_background_text": "#361424"
    }
  },
  "version": "2.0",
  "name": "bagbag",
  "manifest_version": 2
}