iOS Xcode Code Sense icon definitions

[patent10021]

We have these in our code completion pop-ups.

Red: macros

# = macro (think #define)
Brown: Core Data / namespace

C = modeled class
M = modeled method
P = modeled property

N = C++ namespace

Orange: aliased types

C̲ = Objective-C category
E = enum
T = typedef

But where can I find the full list of the icons and their meanings?

Thanks