You can design individual form block in Form Block Customize section.
You can set background color, background filter on this section. There have many kinds of background filter like Blur, Brightness, Contrast, Grayscale, Invert, Opacity, Sepia, Saturate.
In this step you can set border color, width, radius.There have different types of border.Such as solid, dotted, dashed,double. You can set hover border also.
By Padding properties you can generate space around of background.
4. Block Gap:
You can set gap between blocks in this section.
You can set background shadow by using this shadow property.
Change the Position of the block content left or right by Direction.