Examine source code of HeroToZero

{
  "manifest_version": 2,
  "name": "HeroToZero",
  "version": "1.0.0",
  "author": "Dr. Cheap",
  "description": "Hero Image Eliminator",
  "homepage_url": "https://github.com/drcheap/HeroToZero",
  "permissions": [
    "storage",
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "herotozero@drcheap.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/logo-16-dark.png",
    "32": "icons/logo-32-dark.png",
    "48": "icons/logo-48-dark.png",
    "64": "icons/logo-64-dark.png",
    "96": "icons/logo-96-dark.png",
    "128": "icons/logo-128-dark.png"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": false
  },
  "background": {
    "scripts": [
      "common.js",
      "background.js"
    ]
  },
  "browser_action": {
    "browser_style": true,
    "default_title": "Initializing...",
    "default_icon": {
      "16": "icons/logo-16-dark.png",
      "32": "icons/logo-32-dark.png"
    },
    "theme_icons": [
      {
        "light": "icons/logo-16-light.png",
        "dark": "icons/logo-16-dark.png",
        "size": 16
      },
      {
        "light": "icons/logo-32-light.png",
        "dark": "icons/logo-32-dark.png",
        "size": 32
      }
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "common.js",
        "content-script.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    "icons/placeholder.png"
  ]
}