To change the background of a card (including title cards), find the 🎨 icon at the top of your screen.
Select [background] to change the color or add a background image.
Note:
Alignment settings will apply to all elements on the card
These per-card settings will override the course theme. Course theme settings can be found at the bottom of this menu
For enterprise customers, we offer the ability to add a bit more nuance. We can also help you save design settings so they can be re-used quickly across courses.
More help: