Shade columns in Task and Resource views?

I’d like to shade columns in Task and Resource views in OmniPlan 3. This would make it easier to see weekends and holidays for scheduling, particularly when putting together initial timelines. I know I can make weekends unassignable by setting them as non-working time, but that’s inflexible. I need to be able to schedule on weekends and holidays, I just want a visual indicator to let me know where they fall in the timeline. Simple parameters to “shade weekends” and/or “shade holidays” would be terrific, but it would be great if there was also a way to select a column and just shade it as needed.

Perhaps this capability already exists and I’m missing it?