Line thicknesses
For positive lines (dark line on a light background), you should use a thickness of at least 0.25 pt (0.09 mm). For negative lines (light line on a dark background), please use a line width of at least 0.5 pt (0.18 mm).
For positive lines (dark line on a light background), you should use a thickness of at least 0.25 pt (0.09 mm). For negative lines (light line on a dark background), please use a line width of at least 0.5 pt (0.18 mm).