Here is a list of all macros with links to the files they belong to:

BRANCH_NAME : version.h
COMMIT_HASH : version.h
CURRENT_TIME : version.h
DBUG : debug.h
DBUGF : debug.h
DBUGLN : debug.h
DBUGVAR : debug.h
DEBUG_BEGIN : debug.h
ENABLE_DEBUG : config.h
ESCAPEQUOTE : debug.h
FREQ : config.h
PROJECT_PATH : version.h
RF69_COMPAT : config.h
TEXTIFY : debug.h