title: What does .sprite file refers to?
body: <p>I'm using Liferay Portal 6, The .sprite file is not specified in the source code, however, it's included in the URL with a slash dot, then it's blocked by a security program.<br/>
  When I delete those file in theme/docroot/images and I deploy the project, they are generated again.<br/>
  I would like to know how to manage those files or rename them?</p>