Cargo Features

console_log has no features set by default.

[dependencies]
console_log = { version = "1.0.0", features = ["color"] }
color = wasm-bindgen

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.

wasm-bindgen color?