Minecraft wiki entry for Custom, associated text: 1 Access
2 JSON format
2.1 Generator types
3 Defaults
3.1 Noise generator preset defaults
3.1.1 Structure defaults
3.2 Biome parameter defaults
3.3 Type defaults
4 Examples
4.1 Default settings
4.1.1 Expanded default settings
4.2 Custom superflat dimension
5 History
6 Issues
7 Gallery
8 External links
9 See also
10 Notes
11 References