digraph {
concentrate=true;overlap=scale;"tool=Blackshades" [label="tool\nBlackshades",shape=box,style=filled,color=deepskyblue];"tool=Blackshades" -> "rat=Blackshades" [label="similar",dir="both"];"rat=Blackshades" [label="rat\nBlackshades",shape=box,style=filled,color=deepskyblue];}