Examine source code of My Color Picker

{
  "manifest_version": 3,
  "name": "My Color Picker",
  "version": "1.0",
  "description": "Picks colors from a webpage.",
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Activate Color Picker"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{176d4668-d1f2-0129-c61d-8e7ac0e91c0e}"
    }
  }
}