Cargo Features

[dependencies]
actix-admin = { version = "0.8.0", default-features = false, features = ["bulma_css", "bootstrapv5_css"] }
default = bulma_css

The bulma_css feature is set by default whenever actix-admin is added without default-features = false somewhere in the dependency tree.

bulma_css default
bootstrapv5_css

ActixAdmin has 3 features without comments.