1.For some specific contour plot, open Plot Details dialog, under Colormap/Contours tab, click Fill column head.

2. In the Fill dialog. Set the Pattern to Dense.

3.Set Pattern From Color to blue, and To color to red. Click OK.

==> The grid lines are all black, and the colormap is also changed.

4.Reopen Fill dialog.

==> The pattern To color was changed to blue.