How do I adjust the snow mask of a base game item?

Hi all,

Partway through learning to make this little cube table I stopped cloning a desert luxe table and started cloning a basegame one. The desert luxe one had a snow mask texture, and the basegame one doesn't. Do I need to do/add anything for this, and if so, how?

Link to package: drive.google.com/file/d/1EvUpYm0EC9n6LNzGVu9uMbMhMHGdFFRS/view?usp=sharing

How do snow masks work on basegame items?

Thanks in advance