Cargo Features

[dependencies]
egui_virtual_keyboard = { version = "0.1.3", default-features = false, features = ["serde"] }
default = serde

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

serde default

Enables serde and serde of egui

egui:

Allow serialization using serde.

egui_virtual_keyboard has 2 features without comments.