Override custom event color for shared calendars view

When planning an event within company I often have multiple shared calendars opened.
Colleagues use color cathegories for their events which makes it easier for them to read their calendar, but it becomes coloured hell when trying to navigate in say 5 opened and overlaying calendars.

Is there a way to keep each calendar in one color (only from my point of view, not to prevent others from cathegorizing the events individually) for the purpose of easier navigation?