Examine source code of Black Lister

{
  "manifest_version": 2,
  "name": "Black Lister",
  "version": "0.0.5resigned1",
  "description": "Remove dumpy sites from your life",
  "permissions": [
    "tabs",
    "<all_urls>",
    "storage"
  ],
  "content_scripts": [
    {
      "run_at": "document_end",
      "matches": [
        "http://*/*",
        "https://*/*",
        "<all_urls>"
      ],
      "js": [
        "list_tools.js",
        "modify_css.js"
      ],
      "css": [
        "black_lister.css"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/BL_16.png",
      "48": "images/BL_48.png",
      "128": "images/BL_128.png"
    }
  },
  "web_accessible_resources": [
    "black_lister.css",
    "black_list.json",
    "images/MushroomCloud.png",
    "images/gear.png"
  ],
  "icons": {
    "16": "images/BL_16.png",
    "48": "images/BL_48.png",
    "128": "images/BL_128.png"
  },
  "background": {
    "persistent": false,
    "scripts": [
      "bg.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2b9b8741-ee85-45b4-920e-0996656e0ae6}"
    }
  }
}