How to use setColorValueDelegateForKeyPath

Hi everyone,

How do I use setColorValueDelegateForKeyPath? I have this file https://edit.lottiefiles.com/?src=https%3A%2F%2Fassets7.lottiefiles.com%2Fpackages%2Flf20_OX0Ts3.json that I would like to change the text color to white, is possible? and is that method the right one? Any suggestions as to how to achieve it?