title: "First Responder" - Did I get that right?
body: <p>Let me summarize this shortly: A "First Responder" in a nib file is an object, which represents the UI control element that has the user's focus. So if the user clicks on a control, the nib sets that clicked UI control as First Responder. In my app I could make an outlet to that "First Responder" from the nib, so that I could for example send a message "make red font color" to whatever the user has activated by clicking.</p>
  
  <p>And then, if this First Responder UI control does not understand that message, the message gets passed up in the responder chain, until a parent element or grandparent (and so on) UI control element understands the message. Otherwise it will be ignored.</p>
  
  <p>So First Responder always establishes a "link" to the UI control that has focus. Is that right?</p>