Icons, in most cases, are very small images, so a good icon must illustrate its idea in the most concise way.

图标在大多数情况下是非常小的图像，所以一个良好的图标必须以最简洁的方式说明其创意。

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This is a good approach because users may get confused when they click the icon, and then see raw XML.

这是一个好方法，因为用户在单击图标后看到原始xml时可能会不知所措。

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For example, it is a good idea to make error messages red, and to put a red error icon next to them.

例如，使出错消息为红色，并在它们旁边放置红色出错图标，这就是个好主意。

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So what makes a good public icon?

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"That is inevitable, but in the end he is a good player and a soccer icon, and I think he'll help his team, " said Gulati.

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As the story of Clementi has become a popular parable of teen-age good and evil, that yellow-toned photograph has become an icon of adolescent distress.

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