Examine source code of var_dump

{
  "manifest_version": 2,
  "name": "var_dump",
  "description": "client-side var_dump beautifier",
  "version": "1.0.1",
  "homepage_url": "https://gitlab.com/Cl00e9ment/var_dump#readme",
  "icons": {
    "48": "icon.d08f57e8.svg"
  },
  "permissions": [
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": {
      "48": "icon.d08f57e8.svg"
    }
  },
  "background": {
    "scripts": [
      "background-script.7efc3fa9.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.e970e90a.js"
      ]
    }
  ]
}