Examine source code of Night halloween

{
  "theme": {
    "images": {
      "theme_frame": "Halloween2010-header.png"
    },
    "colors": {
      "frame": "#eb8484",
      "tab_background_text": "#ebdfdf"
    }
  },
  "version": "2.0",
  "name": "Night halloween",
  "manifest_version": 2,
  "description": "Halloween 2010"
}