I think you're too sleepy and you'll understand better when you come back more awake. The "colors" are put there by me to identify what I was referring to in the photo. There are no colors put anywhere by RC so no need to research anything.
Here's the original photo:
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Here's the one I added colors shapes to as to highlight what I was referring to:
View attachment 213172
I do hope you manage to get some more sleep and your toe feels better
Purple square is speaker for announcements, Red Circle is camera, green are sprinklers.