graph G {
    compound="true"
    rankdir="TB"
    bgcolor="white"
    fontname="Tahoma"

    node [
        fixedsize="false"
        fontname="Tahoma"
        color="white"
        fillcolor="deepskyblue2"
        fontcolor="black"
        shape="box"
        style="filled"
        penwidth="1.0"
    ]
    edge [
        fontname="Arial"
        color="#DC143C"
        fontcolor="black"
        fontsize="12"
        arrowsize="0.5"
        penwidth="1.0"
    ]




    "chatterbox-twitter" -- "chatterbox-xmpp" [label=" 700 ", penwidth="10", color="#DC143CFF"];
    "chatterbox-imap" -- "chatterbox-xmpp" [label=" 594 ", penwidth="8", color="#DC143CDB"];
    "chatterbox-imap" -- "chatterbox-twitter" [label=" 538 ", penwidth="7", color="#DC143CC9"];
    "chatterbox-nats" -- "chatterbox-slack" [label=" 222 ", penwidth="3", color="#DC143C82"];
    "chatterbox-slack" -- "chatterbox-twitter" [label=" 178 ", penwidth="2", color="#DC143C70"];
    "chatterbox-nats" -- "chatterbox-twitter" [label=" 176 ", penwidth="2", color="#DC143C70"];
    "chatterbox-slack" -- "chatterbox-xmpp" [label=" 170 ", penwidth="2", color="#DC143C70"];
    "chatterbox-nats" -- "chatterbox-xmpp" [label=" 170 ", penwidth="2", color="#DC143C70"];

}