pub fn all_zero(&self) -> bool {
        self.alpha.is_zero()
            && self.red.is_zero()
            && self.green.is_zero()
            && self.blue.is_zero()
    }
/// Return true if all chanels are zero.
Return true if all chanels are zero.
Return true if all chanels are zero .
pub fn all_zero(&self) -> bool {
        self.alpha.is_zero()
            && self.red.is_zero()
            && self.green.is_zero()
            && self.blue.is_zero()
    }
pub fn all_zero ( & self ) -> bool { self . alpha . is_zero ( ) && self . red . is_zero ( ) && self . green . is_zero ( ) && self . blue . is_zero ( ) }
Return true if all chanels are zero.
Return true if all chanels are zero .
&self