1、微信只可以更改聊天背景，无法更改字体颜色，首先点击进入微信程序。
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2、进入微信后，点击最右侧的“我”。
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3、在“我”里找到“设置”，点击进入“设置”。
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4、之后点击进入“聊天”设置。
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https://iknow-pic.cdn.bcebos.com/a686c9177f3e67090c259ad035c79f3df8dc55fc"/>
5、在“聊天”里选择“聊天背景”。
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6、选择其中一种添加聊天背景的方法。
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7、选择好图片后，可以点击“将选择的背景图应用到所有聊天场景”，点击确定即可完成背景设置。
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https://iknow-pic.cdn.bcebos.com/cc11728b4710b91219302ad1cdfdfc0392452228"/>