Examine source code of EPUB Ninja - eBook Reader

{
  "manifest_version": 3,
  "name": "EPUB Ninja - eBook Reader",
  "version": "1.0.2",
  "description": "A fast, lightweight EPUB reader in your browser sidebar. Part of the Ninja suite.",
  "author": "EPUB Ninja",
  "homepage_url": "https://rssninja.co.uk",
  "browser_specific_settings": {
    "gecko": {
      "id": "epubninja@epubninja.app",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "icons": {
    "16": "src/assets/icons/icon-16.png",
    "32": "src/assets/icons/icon-32.png",
    "48": "src/assets/icons/icon-48.png",
    "128": "src/assets/icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "tabs",
    "theme"
  ],
  "host_permissions": [
    "https://rssninja.co.uk/*"
  ],
  "background": {
    "scripts": [
      "src/background/background.js"
    ]
  },
  "sidebar_action": {
    "default_title": "EPUB Ninja",
    "default_panel": "src/sidebar/landing.html",
    "default_icon": {
      "16": "src/assets/icons/icon-16.png",
      "32": "src/assets/icons/icon-32.png"
    }
  },
  "action": {
    "default_title": "EPUB Ninja",
    "default_icon": {
      "16": "src/assets/icons/icon-16.png",
      "32": "src/assets/icons/icon-32.png",
      "48": "src/assets/icons/icon-48.png"
    }
  }
}