Added subtle shadow to nodes (closes #125)
Added subtle shadow to nodes (closes #125)

RJFreund/OpenDSA,vkaravir/JSAV,RJFreund/OpenDSA,vkaravir/JSAV,RJFreund/OpenDSA,RJFreund/OpenDSA,RJFreund/OpenDSA,RJFreund/OpenDSA,RJFreund/OpenDSA,RJFreund/OpenDSA