Color of icon instance don't change to master component

I am not sure if I understood your question. I’ve downloaded the file and it works fine for me. The only thing I did was to reset all the changes from the instance, then the colors changed.

You may have to consider to reset all the changes from an instance, as that, in some point, it may be corrupted because of the changes in the instance. I hope this helps. Let me know if you need further help.

The problem is I need to make icon color darker, and reset the instance meaning I have to do it at all pages, that’s not helpful at all