The default is 1. The default width of the external border is 2. Clicking on the icon window will make the original frame visible again. If a user has many clients running at once, they can avoid cluttering up their screen by iconifying all but the clients currently in use. X Resources Programs running under the X Window System organize their user options under a hierarchy of classes and resources.
Programs define named resources with particular meanings.
They also define how to group resources into named classes. Case distinctions are significant in these names. The order in which the lines appear in the file does not matter. Also, command-line options always override the X resources file. It actually represents the name of the executable file that you invoke to run Emacs.