Change Category Widget default text “Select a Category”

Use WooCommerce Product Category Widget.

I have snippets to change WordPress default category widget “Select a Category” text. I had modify with WooCommerce hook & filter but not work (may be was non-WooCommerce Pages).

If not I have abandon WC Product Category Widget, to custom menu but I need dropdown effect to make it like zappos[.]com mobile site.

Appreciate you have any workaround/suggestions?

function _category_dropdown_filter( $cat_args ) {
        $cat_args['show_option_none'] = __('My Category');
        return $cat_args;
}
add_filter( 'widget_categories_dropdown_args', '_category_dropdown_filter' );

chnage the WC hook & filter as below:

if(!is_admin() && is_page(3061) && is_active_widget(panel-3061-0-0-0)){
function art_architecture_textbooks( $cat_args ) {
        $cat_args['show_option_none'] = __('Art & Architecture');
        return $cat_args;
}}
add_filter( 'woocommerce_product_categories_widget_args', 'art_architecture_textbooks' );

apply_filters( 'woocommerce_product_categories_widget_args','art_architecture_textbooks' );
function art_architecture_textbooks( $list_args ) {
        $list_args['show_option_none'] = __('Art & Architecture');
        return $list_args;
}

apply_filters( 'woocommerce_product_categories_widget_args','art_architecture_textbooks' );
function art_architecture_textbooks( $cat_args ) {
        $cat_args['show_option_none'] = __('Art & Architecture');
        return $cat_args;
}

Any suggestion of plugin and snippets welcome.

Thanks.