Examine source code of PTTI2

{
  "name": "PTTI2",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "loona-ptt-paint-the-town-Firefox_01.png"
    },
    "colors": {
      "frame": "rgba(250, 242, 242, 1)",
      "tab_background_text": "rgba(245, 242, 242, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f2709ddb-5a85-47e2-87e2-a4559a05863f}"
    }
  }
}