It's the classic theme package for ES File Explorer 3. 0, you must install ES File Explorer 3. 0 to use this theme. Search "ES File Explorer" for it. The classic theme use old icons of ES 1. 6 to provide an old style in ES 3. 0. ES, 180 millions global downloads, file manager trend leader on Android! Rated one of best resource management tools on Android market. V3 is coming!
The security report reveals that this application is completely safe. ES Global is the official developer of the app that can be found in the Personalization category. The latest update was on Apr 24, 2015 and ES Themes - was downloaded and installed by over 1M users.