tablepress-larger-id-column.php

<?php
/*
Plugin Name: TablePress Extension: Larger ID column
Plugin URI: https://tablepress.org/
Description: Custom Extension for TablePress to increase the size of the ID column on the "List of Tables"
Version: 1.0
Author: Tobias Bäthge
Author URI: https://tobias.baethge.com/
*/

if ( ! is_admin() )
	return;

add_action( 'admin_print_styles', 'tablepress_input_field_size', 20 );

function tablepress_input_field_size() {
	$current_screen = get_current_screen();

	if ( 'tablepress_list' === $current_screen->id ) {
?>
<style type="text/css" media="screen">
.tablepress-all-tables thead .column-table_id {
	width: 150px;
}
</style>
<?php
}

}