Examine source code of Speed Dial Quantum

{
  "manifest_version": 2,
  "name": "Speed Dial Quantum",
  "short_name": "Speed Dial",
  "description": "Minimal speed-dial extension with support for keyboard shortcuts & importing Speed Dial pages",
  "homepage_url": "https://github.com/Ahimta/speed-dial-quantum",
  "author": "Abdullah Alansari",
  "version": "1.0.2",
  "permissions": [
    "topSites",
    "storage",
    "tabs",
    "activeTab",
    "unlimitedStorage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "dist/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "dist/content.js"
      ]
    }
  ],
  "chrome_url_overrides": {
    "newtab": "src/views/newtab.html"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "icons/icon.png",
    "default_title": "Speed Dial",
    "default_popup": "src/views/popup.html",
    "show_matches": [
      "<all_urls>"
    ]
  },
  "applications": {
    "gecko": {
      "id": "{71ec5708-2489-11e8-8697-87e8af1da1d9}",
      "strict_min_version": "57.0"
    }
  },
  "icons": {
    "48": "icons/icon.png",
    "64": "icons/icon@1.34x.png",
    "96": "icons/icon@2x.png"
  }
}