Examine source code of Dark Splatter

{
  "theme": {
    "images": {
      "theme_frame": "Header.jpg"
    },
    "colors": {
      "frame": "#380505",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Dark Splatter",
  "manifest_version": 2,
  "description": "A splatter background, dark, simple, and doesn't make your browser look like its on acid.\n<a href=\"https://outgoing.prod.mozaws.net/v1/214cc090f5e346a30501c56359a196c33b9189f8eec4addf3cd3834cc5666fa3/http%3A//sefmond.deviantart.com/\" rel=\"nofollow\">http://sefmond.deviantart.com/</a>"
}