code: func (t *Table) SetFooterColor(colors ...Colors) {
  	if len(t.footers) != len(colors) {
  		panic("Number of footer colors must be equal to number of footer.")
  	}
  	for i := 0; i < len(colors); i++ {
  		t.footerParams = append(t.footerParams, makeSequence(colors[i]))
  	}
  }
docs: // Adding column colors (ANSI codes)