Styled Form Control - Copy this React, Mui Component to your project

make select all like this className="u-dropdown-item u-dropdown-item-multi" key="select-all" > <Checkbox checkBoxChecked={selectedValues?.length === items.length} label={"All"} theme={theme} onChange={(event) => handleSelectAll(event)} and make sx={{ borderRadius: "8px" }} IconComponent={ChevronDown}