Examine source code of U2 U2 U2

{
  "theme": {
    "images": {
      "theme_frame": "u2.jpg"
    },
    "colors": {
      "frame": "#8c3f3e",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "U2 U2 U2",
  "manifest_version": 2,
  "description": "Important! This design is ideal for 200 pixel settings which you can achieve by going to View/Toolbars/Customize and adding new toolbars.\nKey words - u2 band music irish bono edge white red."
}