Dear Engineer Muhammed,
Unfortunately, your question was not clear enough for me. However, I am guessing that you are asking about the new activities results from the event and its impact on the original schedule?
We assigned the original schedule as a baseline, so we can easily filter the activities where there is variance in finish dates and those activities would present the impacted ones without any need to make separate color for them.
Is that what you are asking for? If not please clarify.