title: How to exclude image files in Xcode project bundle, conditionally for Release version?
body: <p>I added .png images to the Xcode project for conditional use like making screenshots of a view
  However, since this is not needed for the Release version of the app, I would like to <strong>find a way to exclude them using some kind of settings for Target</strong>. I expect there can be a solution like using <code>#if DEBUG</code> macro for Debug compilation, which can work for lines of source code. But, <strong>in case of files included in project bundle</strong>, I am having trouble finding the answers.</p>