Adding option table value on activation of theme

Question

hi i want to add option table value empty to empty while enabling theme. i tried below code. it doen't add value.

In functions.php

function Arion_register() {
    add_option("arion_site_logo","");
}
add_action('switch_theme', 'Arion_register');

I want to add option table value to empty while activating theme.