Examine source code of ParallaxScroll

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxHeader.jpg"
    },
    "colors": {
      "frame": "#03e6ff",
      "tab_background_text": "#03e6ff"
    }
  },
  "version": "2.0",
  "name": "ParallaxScroll",
  "manifest_version": 2,
  "description": "This is my album cover art for my music project, ParallaxScroll\n\n<a href=\"https://outgoing.prod.mozaws.net/v1/038768baee6145e736ef14eb8dae656ae85e8e9b7348c2a511ad47896c39aa66/http%3A//parallaxscroll.bandcamp.com/\" rel=\"nofollow\">http://parallaxscroll.bandcamp.com/</a>\n\nI hope you like it!"
}