`let searchBar = UISearchBar()
        searchBar.placeholder = ChatConstants.searchTitle
        searchBar.backgroundColor = .white
        searchBar.delegate = self
        searchBar.vCornerRadius = 20
        searchBar.vBorderWidth = 1
        searchBar.vBorderColor = .icedGray
        searchBar.searchBarStyle = .minimal
        searchBar.searchTextField.backgroundColor = .white
        searchBar.translatesAutoresizingMaskIntoConstraints = false
        if let textField = searchBar.value(forKey: ExploreConstants.searchFieldKey) as? UITextField {
            let whiteColor = UIColor.white
            let attributedString = NSAttributedString(string: "Search", attributes: [NSAttributedString.Key.foregroundColor: whiteColor])
            textField.attributedPlaceholder = attributedString
            textField.font = UIFont.regularDMSans(of: ExploreConstants.textFieldFontSize)
            textField.layer.cornerRadius = ExploreConstants.searchBarCornerRadius
            if let searchIcon = UIImage(named: ExploreConstants.iconExploreSearch) {
                let imageView = UIImageView(image: searchIcon)
                let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: ExploreConstants.searchIconOffset + searchIcon.size.width, height: searchIcon.size.height))
                imageView.frame = CGRect(x: ExploreConstants.searchIconOffset, y: 0, width: searchIcon.size.width, height: searchIcon.size.height)
                paddingView.addSubview(imageView)
                textField.leftView = paddingView
                textField.leftViewMode = .always
            }
        }`
}

I’m configuring the search bar as shown above. However, I couldn’t make the gray area seen in the image white. How can I change this area to white?
enter image description here

I expected that by changing the background color of the _UISearchBarSearchFieldBackgroundView to white, the gray area in the search bar would also turn white.