As per https://reactjs.org/docs/strict-mode.html#identifying-unsafe-lifecycles, might want to update componentWillReceiveProps to getDerivedStateFromProps or some other "safe" lifecycle method so that components using this library can adhere to React's new StrictMode
Thanks for reporting.
This project is still using React 15, thus we don't yet have getDerivedStateFromProps which comes in 16.3.
@casesandberg any plans on upgrading to React 16?
Update:
Looks like we'll be getting React 16 in v3 馃檪 https://github.com/casesandberg/react-color/blob/3.0.0/package.json#L64
馃槑
I am going to close this as we will be using getDerivedStateFromProps in 3.0.0.