Starting app version 5.5.x, you can configure the conditional colors for the planning events.
Please refer to the Conditional colors page to find out more details.
In addition, when it comes to planning events, you’ll be able to create the conditional colors that are based on planning fields such as Event Project, Event Description, Event User(s), Event Reporter, and Event Summary fields.
For example, you want to highlight the planning events that are assigned to certain users. In such case, you would have to select the planning field Event User(s), operator in, and pick the required users. Please see below.