Highlight Fix for Trello

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Highlight Fix for Trello",
  "version": "1.0",
  "description": "Makes highlighted text in Trello visible again.",
  "icons": {
    "128": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://trello.com/*"
      ],
      "css": [
        "styles.css"
      ]
    }
  ]
}