code: func NewRow(ratio float64, i ...interface{}) GridItem {
  	_, ok := i[0].(Drawable)
  	entry := i[0]
  	if !ok {
  		entry = i
  	}
  	return GridItem{
  		Type:   row,
  		Entry:  entry,
  		IsLeaf: ok,
  		ratio:  ratio,
  	}
  }
docs: // NewRow takes a width percentage and either a widget or a Row or Column