Examine source code of Owl Tools

{
  "manifest_version": 2,
  "version": "1.4",
  "name": "Owl Tools",
  "description": "Owl Tools is a multi-tool add-on for Firefox Browser.",
  "homepage_url": "https://github.com/imtherouser/OwlTools",
  "author": "imtherouser",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "owltools@imtherouser",
      "strict_min_version": "65.0"
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "contextMenus",
    "storage",
    "unlimitedStorage",
    "webRequest",
    "webRequestBlocking",
    "clipboardWrite",
    "clipboardRead",
    "<all_urls>"
  ],
  "icons": {
    "48": "src/assets/images/owl-icon-48-light-gray.svg"
  },
  "browser_action": {
    "theme_icons": [
      {
        "dark": "src/assets/images/owl-icon-48-light-gray.svg",
        "light": "src/assets/images/owl-icon-48-dark-gray.svg",
        "size": 48
      }
    ],
    "default_title": "Owl Tools",
    "default_popup": "src/components/Popup/index.html"
  },
  "sidebar_action": {
    "default_title": "Owl Tools",
    "default_panel": "src/pages/Preferences/index.html",
    "default_icon": "src/assets/images/owl-icon-48-light-gray.svg",
    "browser_style": true
  },
  "background": {
    "page": "src/background.html"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "*://github.com/*"
      ],
      "js": [
        "src/injections/GitHub/handle-github.js"
      ]
    },
    {
      "all_frames": true,
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "src/injections/YouTube/handle-youtube.js"
      ]
    },
    {
      "all_frames": true,
      "matches": [
        "*://www.twitch.tv/*"
      ],
      "js": [
        "src/injections/Twitch/handle-twitch.js"
      ]
    }
  ],
  "omnibox": {
    "keyword": "x"
  },
  "commands": {
    "open-popup": {
      "suggested_key": {
        "default": "Alt+X"
      },
      "description": "Open Owl Tools Popup"
    }
  }
}