These pictures come from Crystal clear, were made by Everaldo Coelho (www.everaldo.com) and YellowIcon (www.yellowicon.com). They are under LGPL V3 licence (see COPYING.LESSER).

Found on http://commons.wikimedia.org/wiki/File:Crystal_Clear_app_browser.png and http://commons.wikimedia.org/wiki/File:Crystal_Clear_app_cache.png .