To create a custom biome, the first command to run is :
/scustom biome <biomename>
This generates a new file named <biomename> located in the /plugins/Stratos/customization/biome/ folder. In this file, you can edit everything including terrain noise, areas, blocks and decorations for the biome.
Terrain noise
Amplitude and frequency
In the context of terrain generation, frequency refers to the number of peaks and valleys in a given area, while amplitude refers to the height of those peaks and valleys. A terrain with high frequency will have many small peaks and valleys, while a terrain with low frequency will have fewer, but larger peaks and valleys. Amplitude, on the other hand, determines how high or low the peaks and valleys are. A terrain with high amplitude will have very tall peaks and deep valleys, while a terrain with low amplitude will have smaller peaks and shallower valleys. These two parameters can be adjusted to create different types of terrain, from rugged mountains to rolling hills.
Define noise and frequency
In Stratos, modify the terrain_noise value to change frequency and amplitude (you can add as many noises as you want to get the desired result)