So, I was watching tutorial from Paul Esteves https://www.sidefx.com/tutorials/h19-nodes/ [www.sidefx.com] and in section 08 Pyro Solver he created multicolored Pyro sim with attribute adjust color node, but for me its impossible figure out a way to get these color attributes in to the pyroshader and render it out with Karma, could anybody give me a hint how to do it? I tried prim var reader to read the Cd and displayColor and various attributes but still got nothing. Any hint or idea is appreciated.

Hello, I just found the answer to this problem. If you use the pyro solver sop, it contains a pyro bake volume node inside which adds a primitive Cd attribute with the value of 1,1,1. You must delete that Cd attribute with a attribute delete node before rendering in karma.