Examine source code of The Used Banner

{
  "theme": {
    "images": {
      "theme_frame": "TheUsedBanner.JPG"
    },
    "colors": {
      "frame": "#d41313",
      "tab_background_text": "#d91c1c"
    }
  },
  "version": "2.0",
  "name": "The Used Banner",
  "manifest_version": 2
}