You have their picture set as background or lock screen (or BOTH!) on your phone.
你把对方的照片设置为手机的背景或锁屏(或两者皆是)。
You can set the background to transparent and save them as PNG format.
您可以设置透明的背景，并保存为png格式。
Now, the background set in the project preferences is used as default.
现在，在项目中设置相应的背景色用途默认。
You need to do this to set the background as well as the configuration.
你需要做的这个设置背景以及配置。
You need to do this to set the background as well as the configuration.
你需要做的这个设置背景以及配置。
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