I know what you mean about the color coding. With so many categories these days, they have seem to run out of colors and instead use slightly lighter or slightly darker shades. That doesn't help me a whole lot, lol.
I'm not certain about Caribbean Princess, yet on Grand, Golden, Diamond, etc., the Dolphin Deck balconies are completely uncovered. But if you stay fairly close to your sliding door, no one should be able to see you.Even so, they'd have to really get close to the edges of their own balconies to look down.