shader - custom lighting - double sided view

Hello. I am working on a stylized game and I would love to do these cutout trees - https://i.imgur.com/Lif3XpP.jpg
As you can see the inner side of the mesh, even though rendered, is still giving me the white information.
I am using a custom shader with custom lighting - __Imgur: The magic of the Internet

Any ideas on how to solve this issue?

It looks like you have the outline pass turned on, but it’s probably set to have a zero width and be white. Turn that off.

Yes, that solved the problem. Thank you very much!!