Examine source code of Enpass Password Manager

{
  "manifest_version": 2,
  "name": "Enpass Password Manager",
  "short_name": "Enpass",
  "version": "6.11.13",
  "description": "Enpass extension autofills logins, passwords, credit cards and identities from the Enpass desktop application.",
  "author": "Enpass Technologies Inc.",
  "default_locale": "en",
  "homepage_url": "https://www.enpass.io",
  "permissions": [
    "http://*/*",
    "https://*/*",
    "tabs",
    "contextMenus",
    "storage",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "nativeMessaging"
  ],
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Period",
        "mac": "Command+Shift+Period"
      }
    },
    "lock": {
      "description": "__MSG_string_shortcut_lock__"
    },
    "autofill": {
      "description": "__MSG_string_shortcut_autofill__"
    }
  },
  "optional_permissions": [
    "privacy"
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "24": "icons/icon-24.png",
    "32": "icons/icon-32.png",
    "40": "icons/icon-40.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png",
    "256": "icons/icon-256.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/toolbar-chrome-dark.png",
      "32": "icons/toolbar-chrome-dark@2x.png",
      "48": "icons/toolbar-chrome-dark@3x.png",
      "64": "icons/toolbar-chrome-dark-64.png",
      "96": "icons/toolbar-chrome-dark-96.png",
      "128": "icons/toolbar-chrome-dark-128.png",
      "256": "icons/toolbar-chrome-dark-256.png"
    },
    "theme_icons": [
      {
        "light": "icons/toolbar-safari-light.png",
        "dark": "icons/toolbar-safari-dark.png",
        "size": 16
      },
      {
        "light": "icons/toolbar-safari-light@2x.png",
        "dark": "icons/toolbar-safari-dark@2x.png",
        "size": 32
      },
      {
        "light": "icons/toolbar-firefox-light.png",
        "dark": "icons/toolbar-firefox-dark.png",
        "size": 64
      }
    ]
  },
  "options_ui": {
    "page": "pages/settings/option.html",
    "open_in_tab": true
  },
  "devtools_page": "pages/inspector/devtools.html",
  "background": {
    "page": "background/global.html"
  },
  "content_scripts": [
    {
      "js": [
        "injected/scripts/content.js"
      ],
      "css": [
        "styles/animation-fill.css"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "firefox-enpass@enpass.io",
      "strict_min_version": "80.0"
    }
  },
  "web_accessible_resources": [
    "injected/menu/index.html",
    "pages/images/gradient-bg.svg",
    "pages/images/enpass-145.png",
    "icons/icon-16.png",
    "icons/icon-24.png",
    "icons/icon-locked.svg",
    "icons/icon-unlocked.svg",
    "icons/enpass_blue.svg",
    "icons/enpass_white.svg",
    "icons/cross.svg",
    "icons/cross_dark.svg"
  ]
}