Examine source code of Long Time Forgotten

{
  "theme": {
    "images": {
      "theme_frame": "1.jpg"
    },
    "colors": {
      "frame": "#030303",
      "tab_background_text": "#fcf7f7"
    }
  },
  "version": "2.0",
  "name": "Long Time Forgotten",
  "manifest_version": 2,
  "description": "door, cottage, flowers, ivy, vintage, old, building, dark, light, boards, wood, spring, summer,\n\nDesigned by MaDonna"
}