Examine source code of As Winter Comes Forth

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#8ab1bd",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "As Winter Comes Forth",
  "manifest_version": 2,
  "description": "As winter come, the warmth in the air changes to a clear cold. The trees looses all their leaves with the drop in temperatures, and thoughts of snow and family holidays start filling our minds.."
}