Github contributions colorful

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Github contributions colorful",
  "description": "customize your lovely color for the Github contributions",
  "manifest_version": 3,
  "version": "1.1",
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "js": [
        "scripts/content.js"
      ],
      "matches": [
        "https://github.com/*"
      ],
      "run_at": "document_start"
    }
  ],
  "action": {
    "default_popup": "popup/index.html"
  },
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  }
}