code: func DrawTextVertical(x, y int, text string) {
  	PushAttributes()
  	defer PopAttributes()
  
  	defText, defBack := TextColor(), BackColor()
  	firstdrawn := InClipRect(x, y)
  
  	parser := NewColorParser(text, defText, defBack)
  	elem := parser.NextElement()
  	for elem.Type != ElemEndOfText {
  		if elem.Type == ElemPrintable {
  			SetTextColor(elem.Fg)
  			SetBackColor(elem.Bg)
  			drawn := PutChar(x, y, elem.Ch)
  			y += 1
  			if firstdrawn && !drawn {
  				break
  			}
  		}
  
  		elem = parser.NextElement()
  	}
  }
docs: // DrawTextVertical draws the part of text that is inside the current clipping
  // rectangle. DrawTextVertical always paints colorized string. If you want to draw
  // raw string then use DrawRawTextVertical function