Examine source code of Color Picker - Eye Dropper

{
  "manifest_version": 3,
  "name": "Color Picker - Eye Dropper",
  "version": "1.0.0",
  "description": "Get pixel-perfect colors from any webpage with a pro-grade eyedropper and instant one-click copying for HEX, RGB, and HSL codes.",
  "browser_specific_settings": {
    "gecko": {
      "id": "color-picker@extension",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "action": {
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "activate-picker": {
      "suggested_key": {
        "default": "Ctrl+Shift+P",
        "mac": "Command+Shift+P"
      },
      "description": "Open Color Picker"
    }
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon.png"
  }
}