...
Go to the System Configuration and in the System Directories section set a path to the Temporary File Location.
Import new Templates package
Go to the Administration Menu → Import Configuration.
Select the new Templates file from {phixflow_release_folder}/install/phixflow_templates_{version_number}. The system will import new templates set (Styles, Layout Templates, Palettes).
To update the default System Palette, go to the System Configuration and update the Default Component Palette field to point one of the just imported Palettes.