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我使用的是Gnome，对于使用惯了windows的我来说，这个界面确实有点丑，但是，也将就着用了，最近发现有一款软件（Cairo-Dock）可以美化桌面，于是就安装了，但是安装之后发现了一个问题：原来的任务栏挡住了这个软件的界面，于是就想办法隐藏任务栏
删除/usr/share/gnome-shell/extensions/window-list@gnome-shell-extensions.gcampax.github.com 目录
删除之前先备份，需要管理员权限，我直接备份到了所在目录，下边的操作是在/usr/share/gnome-shell/extensions/进行的
cp window-list@gnome-shell-extensions.gcampax.github.com window-list@gnome-shell-extensions.gcampax.github.com.backup
删除
rm -rf window-list@gnome-shell-extensions.gcampax.github.com
这两步也可以直接一步解决
mv window-list@gnome-shell-extensions.gcampax.github.com cp window-list@gnome-shell-extensions.gcampax.github.com.backup
需要修改三个文件，分别是/usr/share/gnome-shell/modes/classic.json，/usr/share/gnome-shell/theme/gnome-classic.css 和/usr/share/gnome-shell/theme/gnome-shell.css
/usr/share/gnome-shell/modes/classic.json
还是先备份，进入/usr/share/gnome-shell/modes/目录
cp classic.json classic.json.backup
修改内容，vi在命令模式下可以使用“/关键词“进行查找
vi classic.json
修改如下
"panel":{ "left": [], "center": [], "right": [] }
/usr/share/gnome-shell/theme/gnome-classic.css
再说一遍，先备份
修改如下
#panel { background-color: #e9e9e9; background-gradient-direction: vertical; background-gradient-end: #d0d0d0; border-top-color: #666; /* we don‘t supportnon-uniform border-colors and use the top bordercolor for any border, so we need to set iteven if all we want is a bottom border */ border-bottom: 1px solid #666; app-icon-bottom-clip: 0px; color: transparent; /* hrm, still no multipoint gradients background-image: linear-gradient(left,rgba(255, 255, 255, 0),rgba(255, 255, 255, 1) 50%，rgba(255, 255, 255, 0)) !important;*/ }
/usr/share/gnome-shell/theme/gnome-shell.css修改两处
最后一次强调，先备份
//第一处
#panel { background-color:transparent; font-weight: bold; height: 0px; }
//第二处 .panel-logo-icon { padding-right: .4em; icon-size: 1px; }
原始代码
/usr/share/gnome-shell/modes/classic.json
{
"parentMode": "user",
"stylesheetName": "gnome-classic.css",
"enabledExtensions": ["apps-menu@gnome-shell-extensions.gcampax.github.com","places-menu@gnome-shell-extensions.gcampax.github.com","alternate-tab@gnome-shell-extensions.gcampax.github.com","launch-new-instance@gnome-shell-extensions.gcampax.github.com","window-list@gnome-shell-extensions.gcampax.github.com"],
"panel": { "left": ["activities", "appMenu"],
"center": [],
"right": ["a11y", "keyboard", "dateMenu", "aggregateMenu"]
}
}
/usr/share/gnome-shell/theme/gnome-classic.css
#panel { background-color: #e9e9e9; background-gradient-direction: vertical; background-gradient-end: #d0d0d0; border-top-color: #666; /* we don‘t support non-uniform border-colors and use the top border color for any border, so we need to set it even if all we want is a bottom border */ border-bottom: 1px solid #666; app-icon-bottom-clip: 0px; /* hrm, still no multipoint gradients background-image: linear-gradient(left, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 50%, rgba(255, 255, 255, 0)) !important;*/ }
/usr/share/gnome-shell/theme/gnome-shell.css
//这是我后来改的，原先的忘记备份了，可以正常显示，和原来差不多
#panel { background-color: #fff; font-weight: bold; height: 1.8em; }
.panel-logo-icon { padding-right: .4em; icon-size: .4em; }
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原文地址：http://www.cnblogs.com/pinnsvin/p/5471479.html
