Examine source code of Styled JSON Viewer

{
  "name": "Styled JSON Viewer",
  "description": "Beautiful, readable formatting for JSON files in the browser.",
  "version": "1.0",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "jsonviewer@netbuddy.net",
      "strict_min_version": "109.0"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "24": "icon-24.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "permissions": [
    "declarativeNetRequest",
    "storage",
    "webNavigation"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Styled JDON Viewer",
    "default_popup": "popup.html"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "jsonview.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "json-redirect-rules",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "file://*/*.json",
        "file://*/*.jsonld",
        "file://*/*.json-ld",
        "file://*/*.geojson",
        "file://*/*.hac",
        "file://*/*.webmanifest",
        "file://*/*.manifest",
        "*://*/*.json",
        "*://*/*.jsonld",
        "*://*/*.json-ld",
        "*://*/*.geojson",
        "*://*/*.hac",
        "*://*/*.webmanifest",
        "*://*/*.manifest"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}