Are you facing issue of not displaying Preview Image for custom theme in admin Magento2? Make sure that you have mentioned media tag in the theme.xml file of your theme as shown below: <media> <preview_image>media/preview.jpg</preview_image> </media> Then you have image preview.jpg in your custom theme app/design/frontend/[vendor]/[themename]/media/. Even though, it is not … Continue reading Preview image for custom theme is not showing on the admin Magento2