runtime/tools/graphexplorer/graphexplorer.css

/*
Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
for details. All rights reserved. Use of this source code is governed by a
BSD-style license that can be found in the LICENSE file.
*/

.actionCell {
    cursor: pointer;
}
.actionCell:hover {
    text-decoration: underline;
}

.headerRow {
    font-weight: bold;
    background-color: #BBBBBB;
}

.nameCell {
    flex-basis: 0px;
    flex-grow: 3;
    overflow: hidden;
    white-space: nowrap;
    padding: 5;
}

.edgeCell {
    flex-basis: 0px;
    flex-grow: 2;
    overflow: hidden;
    white-space: nowrap;
    padding: 5;
}

.classCell {
    flex-basis: 0px;
    flex-grow: 1;
    overflow: hidden;
    white-space: nowrap;
    padding: 5;
}

.sizeCell {
    flex-basis: 7em;
    flex-grow: 0;
    text-align: right;
    padding: 5;
}

.sizePercentCell {
    flex-basis: 2.5em;
    flex-grow: 0;
    text-align: right;
    padding: 5;
    color: gray;
}

.treemapTile {
    position: absolute;
    box-sizing: border-box;
    border: solid 1px;
    font-size: 10;
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
    cursor: default;
}