Examine source code of Ancient Universe Bleu

{
  "theme": {
    "images": {
      "theme_frame": "firepersona2.jpg"
    },
    "colors": {
      "frame": "#f1f9fa",
      "tab_background_text": "#f1f9fa"
    }
  },
  "version": "2.0",
  "name": "Ancient Universe Bleu",
  "manifest_version": 2,
  "description": "I redesigned my old work for firefox persona"
}