Customize the search and filter widgets for your themes. You can customize color, layout... of the app or even customizing deeply by adjusting HTML, JS, CSS code.
To go to customize the search and filter widgets for your theme, please go to Layout -> Customization -> Theme -> Customize.
To make it easier for you, we'll list some frequently asked questions here:
How to customize for product image?
How to show product variants on Collection and search pages?