Examine source code of Red Sunset 3D

{
  "theme": {
    "images": {
      "theme_frame": "Header.png"
    },
    "colors": {
      "frame": "#ffabab",
      "tab_background_text": "#65fa08"
    }
  },
  "version": "2.0",
  "name": "Red Sunset 3D",
  "manifest_version": 2,
  "description": "A 3D realistic red sunset that will deliver a gorgeous and unique look to your very own customized Firefox."
}