Examine source code of thoBONE

{
  "theme": {
    "images": {
      "theme_frame": "thobone-FIREFOX.jpg"
    },
    "colors": {
      "frame": "#6b16a8",
      "tab_background_text": "#ba04b7"
    }
  },
  "version": "2.0",
  "name": "thoBONE",
  "manifest_version": 2,
  "description": "My FirstPersona"
}