gap between water and land on Linux

Debian 12.10. Latest Scatterer.![screen-2025-4-5-10-6-01.png](https://github.com/user-attachments/assets/01abb957-7b54-43b5-94e2-b66342441040)

![screen-2025-4-5-10-6.png](https://github.com/user-attachments/assets/788bccd5-de65-4e8a-8cb4-4d48936d4fd9)

