Examine source code of HeroWars Game Screenshot TimeSaver

{
  "manifest_version": 3,
  "name": "HeroWars Game Screenshot TimeSaver",
  "version": "1.6",
  "description": "Captures and crops the HeroWars game canvas directly to the clipboard.",
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "scripting"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "HWTimeSaver screenshot",
    "default_icon": {
      "16": "img_16x16.png",
      "48": "img_48x48.png",
      "128": "img_128x128.png"
    }
  },
  "icons": {
    "16": "img_16x16.png",
    "48": "img_48x48.png",
    "128": "img_128x128.png"
  },
  "commands": {
    "execute-silent-capture": {
      "suggested_key": {
        "default": "Alt+Shift+S",
        "mac": "Alt+Shift+S"
      },
      "description": "Instant silent canvas capture shortcut"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "HeroWars-Game-Screenshot@hw-time-saver.addon",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}