Examine source code of Tokyo Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#570f43",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Tokyo Theme",
  "manifest_version": 2,
  "description": "This them is for use for the Tokyo Theme using Rainmeter\n\nRainmeter: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/dbc25234462838eedde7d700f30f694f946db241452fd19bbeb290ce6317ee4b/https%3A//www.rainmeter.net/\">https://www.rainmeter.net/</a>\n\nTokyo Theme Tutorial: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/0e3aa46029d46b1450e9fea34e7f5c475386274447b847534ae1cc2d5e0761e9/https%3A//www.youtube.com/watch%3Fv=05TQESLydE0\">https://www.youtube.com/watch?v=05TQESLydE0</a>\n\nImage Source*: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/1a82347cce9c07a791d0efc2d6a480f34154af93fd53c34ccdbb8dcdc60dd418/https%3A//i.imgur.com/GY8Rg8f.png\">https://i.imgur.com/GY8Rg8f.png</a>\n\n*Image was edited to fit the specification needed for Firefox Quantum"
}