Constant libnotcurses_sys::NCALPHA_FG_RGB_MASK

pub const NCALPHA_FG_RGB_MASK: u64 = crate::bindings::ffi::NC_FG_RGB_MASK; // 0x00ff_ffff_0000_0000u64

Extract these bits to get the foreground NcRgb value

See the detailed diagram at NcChannels

Note: When working with a single NcChannel use NCALPHA_BG_RGB_MASK;