Examine source code of spaceeee

{
  "theme": {
    "images": {
      "theme_frame": "firefoxxxxcopy.jpg"
    },
    "colors": {
      "frame": "#6b18ab",
      "tab_background_text": "#38646b"
    }
  },
  "version": "2.0",
  "name": "spaceeee",
  "manifest_version": 2,
  "description": "space out all the wayyyyy"
}