Do not use drop shadows, gradients, or three-dimensional images.

不要使用阴影、渐变或三维图像。

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Visual cues and drop shadows improve visibility when adjusting the layout of shortcuts and widgets.

在调整快捷方式和widget的布局时，视觉线索和阴影的使用改善了可视效果。

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Various static effects are demonstrated, such as blurs (for making backgrounds less distracting when popups are visible), drop shadows, reflections and highlights.

其中一章展示了各种静态特效，比如模糊（用来在显示弹窗的时候弱化背景对注意力的干扰）、阴影、反光和高光。

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Since Enlightenment is a Compositing Window Manager, you get those fancy drop shadows and window transparencies.

ENGADGET: How-to: Picking a Window Manager in Linux