Wallpaper" icon from <a href="http://tango.freedesktop.org/Tango_Desktop_Project"> Tango Project </a> <br><br> Since version 0.8.90 Tango Project icons are Public Domain: <a href="http://tango.freedesktop.org/Frequently_Asked_Questions#Terms_of_Use.3F"> Tango Project FAQ </a> 显示 图标 显示器 探戈偏好桌面墙纸