Cargo Features

[dependencies]
psp22 = { version = "2.0.0", default-features = false, features = ["std", "ink-as-dependency"] }
default = std

The std feature is set by default whenever psp22 is added without default-features = false somewhere in the dependency tree.

std default

Enables std of ink

ink-as-dependency

PSP22 has 3 features without comments.