Examine source code of Rouge22

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_rouge.jpg"
    },
    "colors": {
      "frame": "#00425c",
      "tab_background_text": "#001e2e"
    }
  },
  "version": "2.0",
  "name": "Rouge22",
  "manifest_version": 2
}