Be exceptionally careful when setting text and background colors, Readability must be preserved at all costs.

需要在设定文字以及其背景颜色时格外的注意，必须做到易读性。

youdao

Any designer knows that enough contrast between the text and background makes for easy reading of text and material.

任何一名设计师都明白这点，文字和背景有足够的对比可以让文字更容易阅读。

youdao

Custom options can be set in browsers, such as the default text and background colors, and whether or not graphics are displayed.

可能在浏览器中设置了自定义选项，例如默认文本和背景色以及是否显示图形。

youdao

You can scrawl to your heart's content, add in text boxes and background images from your gallery or take new ones and then send the note off via email or some social network.

ENGADGET: LG Optimus Vu review: a 5-inch, pen-enabled phone to take on the Galaxy Note

They can enhance their notes with cool background images, highlighted text, stamps and different text colors.

WSJ: Pen and Paper Find a Place in the Digital World

Sometimes a solid color background with simple white text can make for a stronger design than a slide full of images and text.

FORBES: Presentation Cleanse