Examine source code of Merry Christmas Tree

{
  "theme": {
    "images": {
      "theme_frame": "Christmas-Tree-Header.png"
    },
    "colors": {
      "frame": "#3b3a3a",
      "tab_background_text": "#648b16"
    }
  },
  "version": "2.0",
  "name": "Merry Christmas Tree",
  "manifest_version": 2,
  "description": "Animated Merry Christmas \nand Happy New Year\nLooks best with tabs at top.\nEnjoy"
}