Under this section you can opt to choose what kind of background you want to set on your activity section. You can choose between the classic and gradient types. Classic lets you choose the color or upload an image while gradient varies between several colors.
Under this styling option you can add some shadow effect to the activity box. Within its settings you can adjust the blur size and spread it horizontally or vertically then position it between the outline and inset modes.
Like in other border styling, with this option you can add some border styling like setting different border types like solid, dotted, dashed, double among others. Then define the width size of your border in the activity item section. Choose a preferred color for the border and add a radius size in case you want the borders to have rounded corners.
Padding & Spacing Items
Under these styling they simply increase or decrease spacing within this section. Adding the padding option will increase spacing between the activity box and the items within it.
Spacing the items via a scale will increase spacing between the individual items.