What happens is it will just copy all the same color to all actives, i added the transparency part in also to show that making a second one work although you can delete that as it sort of looks like it's changing the color to white but that is not correct so that is just the alpha.
Basically i was trying to get a gradient style color change across the actives but it seems the ForEach Object does not seem to work the same way with the color replace feature as it does with setting the transparency.