修改微信的界面背景颜色步骤如下：
1、打开微信->我->设置。
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https://iknow-pic.cdn.bcebos.com/0823dd54564e9258b142858c9282d158ccbf4e59"/>
2、接着在界面内选择“聊天”。
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https://iknow-pic.cdn.bcebos.com/b812c8fcc3cec3fd7b71a417d888d43f87942700"/>
3、然后选择“聊天背景”。
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https://iknow-pic.cdn.bcebos.com/8694a4c27d1ed21b81732d87a36eddc451da3f1d"/>
4、接着悬着“背景图”。
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https://iknow-pic.cdn.bcebos.com/d0c8a786c9177f3e1f73ff6f7ecf3bc79f3d5608"/>
5、在这里选择相册选择或拍照。
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https://iknow-pic.cdn.bcebos.com/d0c8a786c9177f3e1f77ff6f7ecf3bc79f3d5614"/>
6、确定好背景图后，点击应用，就可以修改微信背景的颜色。
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https://iknow-pic.cdn.bcebos.com/dbb44aed2e738bd47eb9b153af8b87d6277ff93c"/>