The Prologe theme (pro version) includes a recent posts widget to display the most recent posts with thumbnails. The thumbnails are automatically generated from the featured image you upload for the post(s).

screenshot demo for the Prologe recent posts widget
  • Go to Appearance > Widgets
  • Drag the Prologe Recent Posts widget into the sidebar position you want to show it in.
    1. Title your widget
    2. Enter the number of posts to display
    3. Order posts by…
    4. Choose a category to display posts from
    5. Add tags (optional)
    6. Show or hide the post dates
  • Click the Save button
screenshot for the Prologe recent posts widget settings