Examine source code of LED Style

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#fc502d",
      "tab_background_text": "#26d0ff"
    }
  },
  "version": "2.0",
  "name": "LED Style",
  "manifest_version": 2,
  "description": "A grey Persona to go with the LED Visual Style (found here <a href=\"https://outgoing.prod.mozaws.net/v1/98d2f8df5a7eece921bd7a5dea3fd579055ff643f47d02c2c61d17ec901de9cf/http%3A//krissirk.deviantart.com/gallery/%23/d2hojze\" rel=\"nofollow\">http://krissirk.deviantart.com/gallery/#/d2hojze</a> )."
}