digraph structs {
    
    bgcolor = "#1f1a30";
    fontname = "sans-serif";
    pad=0.25;
    layout=dot;
    concentrate=true;

    graph [
        nodesep="0.75";
        ranksep="0.4 equally";
    ];

    node [
        fontname = "sans-serif";
        shape = record;
        color = orange;
        fontcolor = "#ffc4b9";
        style = "bold";
    ];


    edge [
        color="#ffc4b9";
        style=bold;
    ];

    subgraph cluster_stack {
        color=none;
        fontname="Courier-Bold";
        fontcolor="#ffc4b9";
        fontsize=13;
        labeljust=l;

        subgraph cluster_s5 {
            label="the_book";
            s5 [label = "{{len: 16} | {<ptr> ptr: *}}";];
        }

        subgraph cluster_s4 {
            label="rustonomicon2";
            s4 [label = "{{len: 12} | {<ptr> ptr: *}}";];
        }

        subgraph cluster_s3 {
            label="rustonomicon";
            s3 [label = "{{len: 12} | {<ptr> ptr: *}}"; ];
        }

        subgraph cluster_s2 {
            label="nomicon";
            s2 [label = "{{len: 7} | {<ptr> ptr: *}}"; ];
        }

        subgraph cluster_s1 {
            label="icon";
            s1 [label = "{{len: 4} | {<ptr> ptr: *}}";];
        }
    }

    subgraph cluster_phantom_edges {
        color=none;
        edge [
            style="dashed";
            penwidth=2;
            color="#ee7ce451";
            arrowhead=empty;
        ];

        s1 -> buffer:i:nw; 
        s2 -> buffer:n:nw;
        s3 -> buffer:r:nw;
        s4 -> buffer:r:nw;
        s5 -> buffer:start:nw;
    }

    {
        s1:ptr:s -> cell:priorities:n;
        s2:ptr:s -> cell:priorities:n;
        s3:ptr:s -> cell:priorities:n;
        s4:ptr:s -> cell:priorities:n;
        s5:ptr:s -> cell:priorities:n;
    }
    
    cell [label = "{{<priorities> refs: *}|{len: 16}|{cap: 16}|{<ptr> ptr: *}}";];
    cell:ptr:w -> buffer:start:nw;
    cell:priorities -> priorities;
    
    priorities [
        shape = none;
        label = <
            <table>
                <tr><td>len</td><td>count</td></tr>
                <tr><td>16</td><td>1</td></tr>
                <tr><td>12</td><td>2</td></tr>
                <tr><td>7</td><td>1</td></tr>
                <tr><td>4</td><td>1</td></tr>
            </table>
        >
    ];

    
    buffer [
        label = "<start> t|h|e| |<r> r|u|s|t|o|<n> n|o|m|<i> i|c|o|n";
        fontname="Courier-Bold"
    ];
}