节点旁边的比例图标用作节点性能的一个可视表示。
The scale icon beside node is used as a visual representation of the performance of the node.
这些都是由Sander Baumann设计。设置一种常用符号的比例，您就不用再费神将图标复制、黏贴到您的设计中。
All were designed by Sander Baumann, set to the proportions of a regular typeface, so you no longer need to copy and paste such ICONS into your designs.
第22行到第53行修改了该look and feel的UIDefaults，以便通过在外部资源文件中定义的一个缩放比例来放大标准图标。
Lines 22 through 53 modify the UIDefaults of the look and feel to magnify the standard ICONS by a factor defined in the external resource file.
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