Examine source code of MergEase

{
  "manifest_version": 3,
  "version": "0.2.2",
  "name": "MergEase • GitHub Code Review",
  "description": "Diff tool for GitHub pull requests",
  "browser_specific_settings": {
    "gecko": {
      "id": "{b5371a03-0432-4f66-951f-07bd6c4465a9}"
    }
  },
  "background": {
    "scripts": [
      "serviceworker.bundle.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": "normal-128.png"
  },
  "icons": {
    "128": "normal-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://github.com/*"
      ],
      "js": [
        "contentScript.bundle.js"
      ],
      "css": [
        "content.styles.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "normal-128.png"
      ],
      "matches": [
        "https://github.com/*"
      ]
    },
    {
      "resources": [
        "swap-horizontal.svg"
      ],
      "matches": [
        "https://github.com/*"
      ]
    },
    {
      "resources": [
        "lock-outline.svg"
      ],
      "matches": [
        "https://github.com/*"
      ]
    },
    {
      "resources": [
        "alert-circle-outline.svg"
      ],
      "matches": [
        "https://github.com/*"
      ]
    }
  ],
  "permissions": [
    "storage"
  ]
}