ircFormat.go
func (i *IrcText) SetBg(c int) *IrcText {
	i.bgColor = c
	return i
}
func (i *IrcText) SetBg(c int) *IrcText {
	i.bgColor = c
	return i
}
func ( i * IrcText ) SetBg ( c int ) * IrcText { i . bgColor = c return i }
// SetBg sets background color
SetBg sets background color