#npx create-react-app color-dropper --template typescript
npm install
npm start

• reusable as package
• work fine with large images(garbage collector/ Profiling w/ lighthouse/ over 10min tracking)
• Image selection
• unit testing
• integration testing
• screenshot testing
• pupeteer
• linting/prettier
• husky for pre-commit
• CI/CD
• Only support canvas by default
• window.scrollY+getBoundingClientRect for inner layers
• nativeEvent(offsetX)