Board View automatically sets the first picture attached to a task as a cover image.
If you'd like to change this image, you can
pin any image attachment to the task.
Pinning images will:
Set the image front and center (at the top) of each task when you open it
Set the image visibly in Board View as the pinned image
How to pin a cover image
Customize which image is permanently shown by pinning an image to a task.
Open a task
Hover over an image to reveal the pin icon
Click to pin or unpin the image
Enabling or disabling cover images in Board view
Open the Board View settings options
Show images on cardsswitch
This will show any pinned images in your tasks in Board View.
Show Pinned Images in List View
Reveal a cover image in List View by hovering over the Pin icon image on a task!