Examine source code of DOM Delete

{
  "manifest_version": 2,
  "name": "DOM Delete",
  "version": "1.1.2",
  "description": "Delete DOM element by clicking on the element.",
  "icons": {
    "48": "icons/dom_delete.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "dist/main.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": {
      "19": "icons/dom_delete.png"
    },
    "default_title": "Delete html element"
  },
  "background": {
    "scripts": [
      "dist/background.js"
    ]
  }
}