Color coding planner periods

I know that you can color code classes on the schedule and planner, but I was wondering if there is a way of changing the color of the background of each planner period? I was hoping to use this as a way of keeping on top of my own planning, e.g. a different color for lessons where I need to collect in books, a different color where I still have some preparation to do for that lesson, etc.

Is this function available? Or is this something which could be done?

Hi Rsbate, sorry for the delay.
I'm afraid it is not possible in the current version but noted. I'll see what I can do.
If you miss anything else, do let me know.
An e-mail from the app's help > support&Suggestions is a bit easier for me to track

If it helps - the way I track where I am at with lesson planning is to use icons.

So in each lesson, I have icons that represent different actions for me: Printing = P, Action = A (get resources or speak to another specialist teacher), Tick = annotated lesson with learning after teaching it. See Image 1 from a lesson in the Planner view:
 

This then allows me to see, at a glance, what I need to do or have done in the Planner view. (See Image 2 in attachments: I would normally remove them once I have actioned them, but have left them here so you can see what they look like!)
 
Hope that helps while Bert works his magic!