code: func (f *Fpdf) SetDrawColor(r, g, b int) {
  	f.setDrawColor(r, g, b)
  }
docs: // SetDrawColor defines the color used for all drawing operations (lines,
  // rectangles and cell borders). It is expressed in RGB components (0 - 255).
  // The method can be called before the first page is created. The value is
  // retained from page to page.