How to blend colors from two texture maps in VFX graph

Hi all!

I am using the VFX graph to lerp between two point cloud objects. I can change the positions of the particles easily using the Set Target Position node and then lerping between the old and target positions. However, I cannot get it to work with the color. I have two different texture maps for the colors of the particles. I can set the original color easily using the Set Color From Map node, but I cannot find out how to change to the second texture map. Thanks in advance for your help! I'm sure there is a very simple solution and that I am just too dumb to realise :///