Can one say me how to change color of DataMap to white!!

Hi could any one say me how to change the color of Datamap to white instead of brown .....

or While iam using data mapping wizard---selected the option shade by area...

I selected from table and mapped but in legend--slecting the range and color option....

I considered 0-as white ..i could not see any where in map its showing brown instead...as default color of data map....


plz suggest me in this plz...
Reddy