Please note that the script header must be customized.
Download file "02 - MigrateSkin.js" (2 Kb)
This script assigns new skins to existing catalog and project sites.
Customization according to the name of your catalog site and the name of the new charts (workspace-project and workspace-catalog if you use the Ametys charts directly, or ***-project and ***-catalog if you use your own chart variation).