Examine source code of Republic P-47 Extra

{
  "theme": {
    "images": {
      "theme_frame": "RepublicP-47copy1.jpg"
    },
    "colors": {
      "frame": "#424242",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Republic P-47 Extra",
  "manifest_version": 2,
  "description": "One with more images and what not. I personally like the other Republic P-47 one I did more. But, your choice!"
}