Examine source code of USA and Flag

{
  "theme": {
    "images": {
      "theme_frame": "USA-Header.jpg"
    },
    "colors": {
      "frame": "#666565",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "USA and Flag",
  "manifest_version": 2,
  "description": "Gold USA and American flag cleanly viable at the top right of the browser window. Nothing should be covered up.\nView with tabs on top."
}