Where is the built-in display .icns, or .tiff in El Cap located? It's showing a Mac Pro, instead of a laptop icon in the displays tab of, "About This Mac" and the display pane in System Prefs. This probably happened from cloning from the MP to the MBP. I've looked in a bunch of common places where .icns, .tiff and .plist files are for the system and user, but I can't find it. Appreciate any help.
So I used the app, LiteIcon to clear the icon cache and that gave me the correct mac model icon for the display. Stuff like this will happen when you clone from one machine to the other. The path is...
/System/Library/CoreServices/ ^click CoreTypes.bundle to show package contents, /Contents/Resources/
All the Mac machine icons are here, as well as most of the OS system icons. I swapped the generic MacBook Pro Unibody icon for a different one and just gave it the same name. I changed the SystemLogo as well by showing the contents of System Profiler .app, instead of having the OS logo.