How to blend two point density result

Dear Experts,

I have some two point plots, then i use pointDensityFilter to have their density plot.
Since this two point plots are two different type, so i want to have a blend visualization result which can show a blend color result from two type of density’s different color.

For example, type 1 is red, type 2 is green, then blend color should be yellow.

But from paraview, i found final result are green or red, there is nothing blend result…

My questions:
Is this possible in paraview?
any other good ideas to fulfill this result?

Best Regards,