Examine source code of birthday boy

{
  "theme": {
    "images": {
      "theme_frame": "birthday_header.jpg"
    },
    "colors": {
      "frame": "#f2f06a",
      "tab_background_text": "#f50c0c"
    }
  },
  "version": "2.0",
  "name": "birthday boy",
  "manifest_version": 2,
  "description": "Please, help me wear this persona because it's my son's birthday and it would mean a lot to him to see himself on the browser."
}