Cargo Features

[dependencies]
starknet-crypto = { version = "0.6.2", default-features = false, features = ["std", "alloc", "signature-display"] }
default = signature-display, std

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

std default
alloc signature-display

Enables alloc of optional hex

signature-display default = alloc

Enables hex

starknet-crypto has 4 features without comments.