White smoke in cycles

Hey

I dunno if this post is in the right place or not, hopefully an admin can move it if not.

Anyways, i’m trying to composite a meteor animation, i have everything looking the way id like bar the smoke itself, no matter what i do in the compositor i cant get the smoke to change colour from back to white, i can edit the density and scale of the smoke and the colour of the fire but nothing seems to affect the colour of the smoke.

Has anyone any experience with this? If so your help will be greatly appreciated!

Thanks!