Examine source code of flags of countries

{
  "theme": {
    "images": {
      "theme_frame": "guardian-palkia.jpg"
    },
    "colors": {
      "frame": "#4cd930",
      "tab_background_text": "#1ad4a2"
    }
  },
  "version": "2.0",
  "name": "flags of countries",
  "manifest_version": 2,
  "description": "these are some of my favorite countries and then most powerful countries"
}