<?php
$columns = [
    "'ok_color'",
    "'ok_color_block_head'",
    "'ok_color_block_2'",
    "'ok_color_block_3'",
    "'ok_color_block_4'",
    "'ok_color_client_txt_color'",
    "'ok_color_client_bg_color'",
    "'ok_color_manager_txt_color'",
    "'ok_color_manager_bg_color'",
    "'ok_color_manager'",
    "'ok_color_block_left_manager'",
    "'ok_color_block_right_manager'",
    "'ok_color_mes_buttons_manager'",
    "'ok_color_my_clients_manager'",
    "'ok_color_free_clients_manager'",
    "'ok_color_client_txt_color_manager'",
    "'ok_color_client_bg_color_manager'",
    "'ok_color_manager_txt_color_manager'",
    "'ok_color_manager_bg_color_manager'",
    "'ok_color_theme'",
    "'ok_color_client_bg_color_theme'",
    "'ok_color_manager_bg_color_theme'",
    "'ok_color_manager_theme'",
    "'ok_color_mes_buttons_manager_theme'",
    "'ok_color_client_bg_color_manager_theme'",
    "'ok_color_manager_bg_color_manager_theme'"
];
$columns_string = implode(",", $columns);
run_query("UPDATE {$config['table_prefix']}module_livechat_settings SET `value`='' WHERE `name` IN ({$columns_string})");