Function ncchannels_set_default 

pub fn ncchannels_set_default(channels: &mut NcChannels_u64) -> NcChannels_u64

Marks both the foreground and background of an NcChannels_u64 as using their “default color”, which also marks them opaque, and returns the new NcChannels_u64.

Method: NcChannels.set_default()