gnome终端透明
The Gnome terminal window has the built in ability to show a transparent background. It’s not true transparency, as it simply shows through the background picture, but it’s close enough.
Gnome终端窗口具有显示透明背景的内置功能。 这不是真正的透明度，因为它只是通过背景图片显示出来，但是足够接近。
Open up a terminal window, and go to the Edit \ Current Profile menu:
打开一个终端窗口，然后转到“编辑\当前配置文件”菜单：
Click on the Effects tab, and then check the Transparent background radio button. The slider will let you control how transparent the background is. All the way to the left is fully transparent.
单击效果选项卡，然后选中透明背景单选按钮。 滑块可让您控制背景的透明度。 一路向左完全透明。
I left it a little bit shaded, here’s what it looks like over the default Ubuntu background:
我给它留了一点阴影，这是默认Ubuntu背景下的样子：
This trick is most useful when you have a very dark or very light background.
当背景很暗或很亮时，此技巧最有用。
gnome终端透明