title: bind key to complete filename wherever the context is in Zsh
body: <p>Sometimes I want a filename instead of what zsh guesses for me. For example, I have a PNG file without a proper <code>.png</code> suffix, which makes zsh think it isn't a picture and won't list it when I type <code>Tab</code> to complete arguments of <code>display</code>.</p>
  
  <p>I am wondering if there is a key sequence that completes for a filename wherever the context is, like <code>^XC</code> for <code>_correct_filename</code>, or how to configure zsh to do the thing?</p>