Examine source code of moth light

{
  "theme": {
    "images": {
      "theme_frame": "FF-persona-moth.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#007b96"
    }
  },
  "version": "2.0",
  "name": "moth light",
  "manifest_version": 2,
  "description": "all photo credits go to <a href=\"https://outgoing.prod.mozaws.net/v1/5cfb399fe2777b2767da6dbb6c69e670ca2511e37f0e91b179248213d4c98e2d/http%3A//freelancah.deviantart.com\" rel=\"nofollow\">freelancah.deviantart.com</a> photo <a href=\"https://outgoing.prod.mozaws.net/v1/c322f41a0908762e7f3f67f3ded3dbf9cf598b3688b78b2a818da794f3722775/http%3A//freelancah.deviantart.com/art/Pieris-Rapae-153293105\" rel=\"nofollow\">http://freelancah.deviantart.com/art/Pieris-Rapae-153293105</a>\nedited in PS CS2 by me."
}