Now that we have taken a look at free WordPress themes and premium WordPress themes, let’s talk about how to upgrade WordPress themes. Here under Appearance and Themes, you will note that there is a new version of this theme so it’s available for update now.
To update that you come over here and click that update now. It shows you that it has been updated and you’re good to go. Now if you want to delete the theme you’ll have to go to theme details and then come down here and click delete. But until you do that there’s no delete button sitting out here like that.