Customization of Textfield javafx

Question

Hello, I would like to know how to customize my Textfield to leave with this same style ("http://codepen.io/Wakkos/pen/hCquc"), but without color change.

I found this code, but I’m having trouble implementing it. What I would like from this lib is the floating label part.

lib: https://github.com/marconi1992/MaterialComponentsJavaFX3

Thank you!