Try it now About Polymer Polymer Summit 2017 Join us in Copenhagen for the third annual Polymer Summit, August 22–23, 2017. The summit will feature talks from the Polymer team and community, codelabs, and of course great food and fun! Also full/boxed width layouts, dark/light navigation, as well as 9 color schemes. Once the database upgrade is complete, your Web Store is now running version 2.5.2. 4. Final Steps Delete the file index.html in your web root directory. Responsive Joomla Design This creates a dynamic fluid page layout that automatically realigns itself to fit any screen size so users can get the full-size site experience in the palm of their hand.