From the source, I took the red water in CO form. Unfortunately, there was a pattern on the yellow water so I decided to go through all the calculations to get the templates up there. Then, I realised the dot template wasn't showing up, so I brightened it by 150%. Then, I had to trial and error the animation times. It was a lot of work.
If you just want the color to change, play around with the hue on the original red rain.