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