How to change density in the example of rayleigh-taylor ?

Dear friends,

This is my first post and I have not been using Palabos for very long so please forgive me if I have misunderstood anything. I want simulate a droplet(heavy fluid) in channel( full of light fluid) whit palabos. I see there is a multiComponent2d code in the Example folder and thought that this may be a good starting point for me. But initial density distribution in this case PROPORTIONATE to volume that each component occupancy. Is it true?
How I can change this densities and apply high density to small droplet.
For example i want apply rho_1=2(heavy component) and rho_2=0.06(light component) in square domain.
I appreciate any help in advance.
Best regard