Cargo Features

[dependencies]
kerbalobjects = { version = "4.0.3", default-features = false, features = ["ksm", "ko"] }
default = ko, ksm

These default features are set whenever kerbalobjects is added without default-features = false somewhere in the dependency tree.

ksm default

Affects kerbalobjects::ksm

ko default

Affects kerbalobjects::ko