public static @Nullable PermissionDefault getByName(String name) {
        return LOOKUP.get(name.toLowerCase(Locale.ROOT).replaceAll("[^a-z!]", ""));
    }
Looks up a PermissionDefault by name

@param name Name of the default
@return Specified value, or null if not found
nukkit/src/main/java/me/lucko/luckperms/nukkit/inject/PermissionDefault.java