demo-plugin org.osivia.demo.customizer.plugin.DemoPlugin text/html Plugin demo-regions-customizer org.osivia.demo.customizer.regions.RegionsCustomizer text/html Regions customizer demo-attributes-customizer org.osivia.demo.customizer.attributes.AttributesCustomizer text/html Attributes customizer demo-internationalization-customizer org.osivia.demo.customizer.internationalization.InternationalizationCustomizer text/html Internationalization customizer demo-feeder-customizer org.osivia.demo.customizer.feeder.FeederCustomizer text/html Feeder customizer demo-project-customizer org.osivia.demo.customizer.project.ProjectCustomizer text/html Project customizer