Turning off card titles allows you to customize your app even further! This will allow you to add the title of your card into the image that is chosen for the Card Background Image if you so choose.
Step-by-Step Instructions
Step 1: Go to the App module and click Navigation. Select the Home Cards tab and click the edit icon for the card you want to turn off a title on.
Step 4: Under the General settings, select the check box labeled Hide Title from Card and click Save.
Checking this box will also remove the title from the card on your PWA website, if the card is enabled there.
This will allow you to add the title of your card into the image that is chosen for the Card Background Image if you so choose.