Step by step process of creating new theme in OPENCART 3 or Greater
Step:1 Copy all the folder catalog/view/theme/default to catalog/view/theme/THEMENAME Step:2 Create the files by copying the default theme files i.e. ./admin/language/en-gb/extension/theme/THEMENAME.php In language file change default name to THEMENAME ./admin/view/template/extension/theme/THEMENAME.twig ./admin/controller/extension/theme/THEMENAME.php In controller THEMENAME.php change call name from ControllerExtensionThemeDefault to ControllerExtensionThemeThemename And search and replace theme_default to theme_THEMENAME in all above 3...Read more …