Examine source code of HTTPS Everywhere

{
  "applications": {
    "gecko": {
      "id": "https-everywhere@eff.org"
    }
  },
  "author": "extension-devs@eff.org",
  "background": {
    "scripts": [
      "background-scripts/bootstrap.js",
      "background-scripts/util.js",
      "wasm/https_everywhere_lib_wasm.js",
      "background-scripts/wasm.js",
      "background-scripts/update_channels.js",
      "background-scripts/update.js",
      "background-scripts/rules.js",
      "background-scripts/store.js",
      "external/pako-1.0.5/pako_inflate.min.js",
      "background-scripts/incognito.js",
      "background-scripts/ip_utils.js",
      "background-scripts/modules/ssl_codes.js",
      "background-scripts/background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "38": "images/icons/icon-active-38.png"
    },
    "default_popup": "pages/popup/index.html",
    "default_title": "__MSG_about_ext_name__"
  },
  "content_security_policy": "script-src 'self' 'wasm-eval'; object-src 'self'",
  "default_locale": "en",
  "description": "__MSG_about_ext_description__",
  "homepage_url": "https://www.eff.org/https-everywhere",
  "icons": {
    "48": "images/icons/icon-active-48.png",
    "128": "images/icons/icon-active-128.png"
  },
  "manifest_version": 2,
  "minimum_chrome_version": "55",
  "name": "__MSG_about_ext_name__",
  "options_ui": {
    "open_in_tab": true,
    "page": "pages/options/index.html"
  },
  "permissions": [
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "tabs",
    "cookies",
    "storage",
    "*://*/*",
    "ftp://*/*"
  ],
  "version": "2021.7.13",
  "web_accessible_resources": [
    "/pages/cancel/index.html"
  ]
}