Card Form: How to change the card background color?

Hi!

I've purchased a unique car clipart here: https://hum2d.com/ The website specified that the car was on a white background. I need to position the image of the car so that the background is not visible. After uploading to the form, I see that the background of the form is white and the background of the car is gray. Is there any way to change the background of the image in the form builder? Or maybe I can make the background in the form itself the same color as in the picture?

Unfortunately, the card form layout doesn't support to change the card background color. You will need to edit the image background using an image editor instead and then upload it to your form again.