Labels Milestones
BackSurdo (L for low, H for high)
Surdo (L for low, H for high)
row_2 = row_1 + v_margin + 12; row_1 = v_margin+12; row_2 = row_1 + v_margin + 12; top_row = height - v_margin*2 - title_font_size; working_increment = working_height / 6; // generally-useful spacing.