Cargo Features

[dependencies]
progression = { version = "0.1.15", default-features = false, features = ["num-format", "terminal_size"] }
default = num-format, terminal_size

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

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

num-format default
terminal_size default

Enables terminal_size ^0.2.3