Cargo Features

[dependencies]
mdbook-emojicodes = { version = "0.3.0", default-features = false, features = ["custom_emojis"] }
default = custom_emojis

The custom_emojis feature is set by default whenever mdbook-emojicodes is added without default-features = false somewhere in the dependency tree.

custom_emojis default

mdbook-emojicodes has 2 features without comments.