How to upgrade Central theme?
If you are using FileZilla, please read this before you copy files:
You can upgrade our theme by performing following steps:
1. Download latest theme main file from ThemeForest
2. Extract it and locate central.zip
3. Extract central.zip and locate central folder
4. Copy/Replace the content of central folder to /wp-content/themes/central folder of your web site.
Using this method, none of existing content or settings will be lost.