You can customize the Sidebar Widgets as you like. Follow Theme Options > General Settings. Here from the Blog tab click Sidebar Options and the sidebar widgets field will appear.

Custom Sidebar Style: Switch on for custom sidebar style.

Widgets Background Color: Set Widget Background Color.

Box Shadow: Set Widget Box Shadow.

Widget Margin: Set Widget Margin.

Widget Padding: Set Widget Padding.

Widget Border: Set Widget Border.

Widget Title Tag: Set Widget Title Tag.

Widget Title Typography: Set Widget Title Typography.

Widget Title Margin: Set Widget Title Margin.

Widget Title Padding: Set Widget Title Padding.

Widget Title Color: Set Widget Title Color.

Widget Text Color: Set Widget Text Color.

Widget Anchor Color: Set Widget Anchor Color.

Widget Anchor Hover Color: Set Widget Anchor Hover Color.

Click Save Changes to save theme options. Click Reset Section to reset only this section. Click Reset All to reset all theme options.