Examine source code of Stressbuster1

{
  "theme": {
    "images": {
      "theme_frame": "SB1.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Stressbuster1",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/4b57b7821b21fc86c5e15b870a3f08ab672e03970c9b6eed1cbbb527e0435a26/http%3A//Stressbuster1.com\" rel=\"nofollow\">Stressbuster1.com</a> Logo and colors"
}