[Qgis-user] Color gradients for vectors?

[prog-qgis at alexandrathorn.com]

I need to generate a large number of polygon vector maps using the same
color gradient scale for different columns of an attribute table.  I
need to shade them all the same way even though different columns have
different min and max values. Is there an efficient way to do this, or
do I need to go through the "Graduated" symbols and define the same
range for each symbol for each column?

Thanks in advance,
Alexandra