WordPressのデフォルトのテーマが邪魔

そんなときはこんな呪文を書いちゃおう。Functionにね

/* すべての「Twenty Twenty～」を自動削除 */
function remove_all_default_themes() {
$themes = wp_get_themes();

foreach ($themes as $theme_slug => $theme) {
    if (strpos($theme_slug, 'twentytwenty') === 0) {
        delete_theme($theme_slug);
    }
}

}
add_action(‘admin_init’, ‘remove_all_default_themes’);