1.解压Stylish.rar到本地Stylish.crx
2.拖拽Stylish.crx到Google Chrome菜单栏安装Stylish插件
3.More tools->Extensions->Stylish->Options->Write new style 添加以下内容,然后Save
Name: Green
Code: *{background-color: #CCE8CC!important}
4.刷新页面查看是否背景色已改变
Btw, attached ModHeader插件。