Examine source code of B - Capture Shot

{
  "manifest_version": 3,
  "name": "B Capture Shot",
  "version": "1.0.1",
  "description": "Capture the active tab as a screenshot: full page, visible area, or selection. Preview, crop, draw, and save.",
  "author": "Bahadır B. Bekdemir",
  "icons": {
    "48": "images/logo/b-capture-shot-48.png",
    "96": "images/logo/b-capture-shot-96.png",
    "128": "images/logo/b-capture-shot-128.png"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "scripting",
    "downloads",
    "storage"
  ],
  "action": {
    "default_icon": {
      "48": "images/logo/b-capture-shot-48.png",
      "96": "images/logo/b-capture-shot-96.png",
      "128": "images/logo/b-capture-shot-128.png"
    },
    "default_title": "Take screenshot",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "service_worker": "scripts/background.js",
    "scripts": [
      "scripts/background.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "images/icons/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "commands": {
    "capture-visible": {
      "suggested_key": {
        "default": "Ctrl+Shift+V",
        "mac": "Command+Shift+V"
      },
      "description": "Capture visible area screenshot"
    },
    "capture-full": {
      "suggested_key": {
        "default": "Ctrl+Shift+F",
        "mac": "Command+Shift+F"
      },
      "description": "Capture full page screenshot"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "b-capture-shot@bcaptureshot",
      "strict_min_version": "121.0"
    },
    "gecko_android": {}
  }
}