Examine source code of Notion Clipper

{
  "description": "Notion Pro Clipper lets you add webpages, emails, screenshots and images to your Notion workspace.",
  "version": "0.5.2",
  "manifest_version": 2,
  "name": "Notion Pro Clipper",
  "icons": {
    "16": "./src/logo/favicon-16x16.png",
    "32": "./src/logo/favicon-32x32.png",
    "48": "./src/logo/favicon-48x48.png",
    "128": "./src/logo/favicon-128x128.png"
  },
  "browser_action": {
    "default_title": "Notion Pro Clipper",
    "default_popup": "./src/popup/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./src/foreground/saveUrl.js"
      ],
      "css": [
        "./src/foreground/foreground_styles.css"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./src/foreground/saveSection.js"
      ],
      "css": [
        "./src/foreground/foreground_styles.css"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./src/foreground/fullpageBookmark.js"
      ],
      "css": [
        "./src/foreground/foreground_styles.css"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./src/foreground/screenshotFullpage.js"
      ],
      "css": [
        "./src/foreground/foreground_styles.css"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./src/foreground/screenshotSnippet.js"
      ],
      "css": [
        "./src/foreground/foreground_styles.css"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./src/foreground/screenshotVisible.js"
      ],
      "css": [
        "./src/foreground/foreground_styles.css"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./src/foreground/saveImage.js"
      ],
      "css": [
        "./src/foreground/foreground_styles.css"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "cookies",
    "contextMenus",
    "*://*/*",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "./service-worker.js"
    ]
  }
}