Examine source code of Skellington jack

{
  "theme": {
    "images": {
      "theme_frame": "Untitled-1.jpg"
    },
    "colors": {
      "frame": "#b8523b",
      "tab_background_text": "#c7c7c7"
    }
  },
  "version": "2.0",
  "name": "Skellington jack",
  "manifest_version": 2,
  "description": "001 jks"
}