Examine source code of Super Brothers Enhanced

{
  "theme": {
    "images": {
      "theme_frame": "firefoxpersonas.jpg"
    },
    "colors": {
      "frame": "#11ff00",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Super Brothers Enhanced",
  "manifest_version": 2,
  "description": "Fanart slash character cosplay of one of our favorite brands and games :) Created for the indie company Bravarian Paw Studios"
}