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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Trello Horizontal Lists",
  "version": "1.7",
  "description": "Turns Trello Lists Horizontal so they can be used for vertical comparisons.",
  "author": "Jordan Walsh (info@heyshmu.com)",
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "css": [
        "styles.css"
      ],
      "js": [
        "scripts.js"
      ],
      "matches": [
        "https://trello.com/*"
      ]
    }
  ],
  "icons": {
    "16": "logo.png",
    "48": "logo.png",
    "128": "logo.png"
  }
}