1. To change the cover image of a blog post, firstly expand the Blog panel from the left toolbar.
2. Find the blog post you want to edit, and click on the three dots to open the blog post settings.
3. In the Featured image tab, upload your own or choose from free images. Don't forget to save your changes.
Note: The recommended aspect ratio for a blog post cover image is 5:3 (width:height). How to resize images to correct aspect ratio? ✂