layertree → symbology Relation

File in src/core/layertree	Includes file in src/core/symbology
qgslayertreemodel.cpp	qgsrenderer.h
qgslayertreemodel.cpp	qgssymbollayerutils.h
qgslayertreemodellegendnode.cpp	qgsrenderer.h
qgslayertreemodellegendnode.cpp	qgssymbollayerutils.h
qgslayertreemodellegendnode.h	qgslegendsymbolitem.h