As a web developer, one of the most common tasks I encounter is changing the background color of an icon or making its background transparent.

作为一个网页开发员，我用Photoshop最常要做的是改变图标的背景颜色或者是把图标背景变透明。

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Notice how the transparent color changes and blends with the background.

留意透明颜色如何变化并与背景融合。

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The DelegatePaintPanel subclass allows any image to be the background of any other (partially transparent) component.

delegatepaintpanel子类允许任何图像作为任何其他(部分透明)组件的背景。

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The particular issue of a presidential candidate's willingness to be transparent about his or her background is important.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,