conflict with other lists

Hi,

I have modified some code to add style only for pages plugin.
There is no conflict with other lists

init.php

function op_register_styles_backend() {

	if (is_my_plugin_screen()) {
		wp_enqueue_style('jQuery-ui-timepicker', op_baseurl() . '/js/jQuery.ui.timepicker/jquery.ui.timepicker.css', false, false, 'all');
		wp_enqueue_style('jQuery-ui-style', 'https://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css', false, false, 'all');
		wp_enqueue_style('opening-hours-backend', apply_filters( 'op_backend_stylesheet', op_baseurl() . '/css/backend.css' ), false, false, 'all');

		wp_register_script('jQuery-ui', 'https://code.jquery.com/ui/1.10.3/jquery-ui.js', false, null, false);
		wp_register_script('jQuery-ui-timepicker', op_baseurl() . '/js/jQuery.ui.timepicker/jquery.ui.timepicker.js', false, null, false);
		wp_enqueue_script('jQuery-ui');
		wp_enqueue_script('jQuery-ui-timepicker');
	}
}

// Check if we're on our options page
function is_my_plugin_screen() {
	global $parent_file;
    if ( $parent_file == 'opening-hours') {
        return true;
    } else {
        return false;
    }
}	

add_action('admin_init', 'op_register_styles_backend');

https://www.ads-software.com/plugins/wp-opening-hours/