Examine source code of Text Replacements

{
  "manifest_version": 2,
  "name": "Text Replacements",
  "version": "1.0",
  "homepage_url": "https://github.com/SakshamKarnawat/text-replacements-firefox",
  "description": "Text Replacements is an extension that brings the Text Replacements feature from MacOS/iOS to Firefox.",
  "icons": {
    "48": "icons/logo-48.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/logo-32.png",
    "theme_icons": [
      {
        "light": "icons/logo-32-light.png",
        "dark": "icons/logo-32.png",
        "size": 32
      }
    ],
    "default_title": "Text Replacements",
    "default_popup": "popup/text_replacements.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{07177ef7-7949-4551-b608-f7e136900896}"
    }
  }
}