An easy way to create a new theme for Share, without any development - www.flex-solution.com/theme/. Just generate amp, put into amps_share folder, then apply amps and use it!
You may review demo of how it works on youtube - https://www.youtube.com/embed/HcYUKOTvcDY
How to use
1) Generate amp by using Share Theme Builder
2) Stop Alfresco if running
3) Put the amp file in the {alfresco_home}/amps_share directory.
4) Open terminal and execute command {alfresco_home}/bin/apply_amps.sh -force
5) Start Alfresco
Developed by FlexSolution