Ubuntu12.04 how to change the launcher icon size on the left

Ubuntu12.04 how to modify the left of the launcher icon size in the unbunt-2d desktop tossing a long time there is no way to modify the left of the icon size. because of the computer speed, there has been no use of 3d desktop. I finished it today and reduced the icon. specifically, modify the following... ubuntu12.04 how to modify the left of the launcher icon size in the unbunt-2d desktop tossing a long time there is no way to modify the left of the icon size. because of the computer speed, there has been no use of 3d desktop. I finished it today and reduced the icon. specifically, modify the following file:/usr/share/unity-2d/shell first modified (previously 48 ). /common/IconTile. qml: 71: sourceSize. width: 24. /common/IconTile. qml: 72: sourceSize. height: 24 and then, before 65 .. /Shell. qml: 91: width: 34. /launcher/LauncherList. qml: 35: property int selectionOutlineSize: 34 finally, modify. /launcher/LauncherList. qml: 31: property int tileSize: 26 final effect