To load it and replace old default layout, click on "Load" , deselect togle "Keep the current Particles while changing Preset" and select the new Preset Default ETL
v1.1
Adding missing yalm file, copyright.yaml, for section copyright.
Warning in xml file about additionnal scss to add in custom.scss file
v1.0
Initial version - For Gantry 5, template Hydrogen.