Examine source code of Fattie Friends

{
  "theme": {
    "images": {
      "theme_frame": "fattie_friendspersonas.JPG"
    },
    "colors": {
      "frame": "#f7f4f4",
      "tab_background_text": "#f7f4f4"
    }
  },
  "version": "2.0",
  "name": "Fattie Friends",
  "manifest_version": 2,
  "description": "One likes the weight, the other...doesn't. But still friends. Got fat?"
}