//! Returns the layer's description if it's not empty, else its local name
const String get_non_empty_description()const { return get_description().empty() ? get_local_name() : get_description(); }
//! Returns the layer's description if it's not empty, else its local name
const String get_non_empty_description()const { return get_description().empty() ? get_local_name() : get_description(); }