By providing the image URL inside HTML Image tags, we may add images to Buttons. Using the various controls accessible in the Flow Studio and Experience Designer, we can add buttons. The HTML markup should be entered in the Buttons' Text areas.
Example of an image HTML tag,
<img src="https://exmaple.com/dynamic/images/rain-icon.png"/>
Example with Single Input control
Go to Create> Agents> Flow Studio> Flow Studio canvas.
Drag and drop a Single Input control.
Go to the General Tab> Button
Add the Value for the buttons.
On the Text field, add the image URL with an HTML tag.
Save and launch the Bot or the Flow Studio Preview Bot
The Buttons will now have the images on the Buttons.