Examine source code of Old Kitchen Wallpaper

{
  "theme": {
    "images": {
      "theme_frame": "tristan_old_wallpaper.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Old Kitchen Wallpaper",
  "manifest_version": 2,
  "description": "Just like the wallpaper that used to hang in grandma's kitchen. It's even kind of dirty from years of cooking."
}