Reflect in Seesaw Extension

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Reflect in Seesaw Extension",
  "short_name": "Seesaw",
  "version": "1.3.1",
  "description": "Give students a quick way to bring work from any website into Seesaw for added layers of creative thinking and reflection.",
  "permissions": [
    "activeTab",
    "tabs",
    "scripting"
  ],
  "host_permissions": [
    "https://*.seesaw.me/"
  ],
  "background": {
    "service_worker": "seesaw_extension_worker.es6.js"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.seesaw.me/*"
      ],
      "js": [
        "seesaw_extension_client.es6.js"
      ],
      "css": [
        "seesaw_extension_client.css"
      ]
    }
  ],
  "action": {
    "default_icon": {
      "16": "images/[email protected]",
      "32": "images/[email protected]",
      "48": "images/[email protected]",
      "128": "images/[email protected]"
    },
    "default_title": "Post to Seesaw",
    "default_popup": "seesaw_extension_popup.html"
  },
  "icons": {
    "16": "images/[email protected]",
    "32": "images/[email protected]",
    "48": "images/[email protected]",
    "128": "images/[email protected]"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "images/*"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "manifest_version": 3
}