Examine source code of spider tree

{
  "theme": {
    "images": {
      "theme_frame": "spider-tree-top.jpg"
    },
    "colors": {
      "frame": "#242121",
      "tab_background_text": "#161517"
    }
  },
  "version": "2.0",
  "name": "spider tree",
  "manifest_version": 2,
  "description": "the infamous spider tree."
}