I want to create content type based on Element content type, which has only one field - Title. I'd like to modify this field's display name. How can I find the GUID of title field from base content type, so I can reference it in FieldRefs element and modify display name?
If you are using Visual Studio 2010, you can use the Server Explorer to inspect the fields of the content type.
You can also do the same thing (actually, even more) using a stand-alone application named SharePoint Manager
If you're looking for a standard Title field from an OOTB content type, there is a simple way to fetch it: just use SPBuiltInFieldId.Title field:
It could be done from code or from PS, as illustrated above.
All base fields are defined in a feature :
Just search for "Title" and you will find the Title column and its guid.
A side note :
This file and
14\Templates\Features\ctypes\elements.xml for content types, are gold mines to understand and discover some undocumented ways of working with fields and/or content types