General menu/tab & Keys tab

Finally, on the General tab (also reached directly from Graph>General), thicken up all lines with (Line width: 1.5) , increase the size of all fonts with (Overall font scale: 140), remove the display of the calculation history (transformation, similarity measure etc.) by unchecking (Plot history). On the Keys tab, take Keys title font to make the factor title ✓Bold, and Edit to obtain the Key dialog and reverse the upward and downward triangle symbols for this salinity factor (so Lo points down!).