Add stylings to the Google Pay button

Hello there!

I’m trying to add some stylings to the Google Pay button. I’m trying to add a border to it, change the background, fill on hover etc (if it’s possible, of course, which I’m not sure). I’ve tried to use the?wc_stripe_upe_params?hook, but it doesn’t seem to work for either ‘.GooglePayButton’ or ‘.Button’ rules (see below).

Here is the code example I implemented to test if I can add the border to the Google Pay button:

add_filter( 'wc_stripe_upe_params', function ( $stripe_params ) {
    $stripe_params['appearance'] = (object) [
        'rules' => (object) [
            // '.Input' => (object) [
            //     'fontSize' => '16px',
            //     'backgroundColor' => '#212D63',
            //     'border' => '20px solid var(--colorPrimary)',
            // ],
            '.GooglePayButton' => (object) [
              'border' => '1px solid #000000',
              'backgroundColor' => '#fff'
            ],
            '.Button' => (object) [
              'border' => '1px solid #000000',
              'backgroundColor' => '#fff'
            ],
        ],
        'variables' => (object) [
          'fontFamily' => '"SF", Sans-serif'
        ]
    ];

    return $stripe_params;
} );

Pls see this thread as a reference https://www.ads-software.com/support/topic/gpay-apple-pay-express-button-appearence-rounded/#post-18130950