--paper-element:{} stintax styles not working

[conceptree]

Hello,

We have migrated to Stencil JS in my current project and I am getting an hard time on getting some of the components that abstracts paper-inputs to override the styles. It seems that the custom CSS properties --paper-element:{} sintax is not working at all and there are some pollyfills for that out there.

Can anyone one point me into the right direction so that I can fix this in our side?

Thanks in advance.