site_url(), 'return' => admin_url('themes.php?page=tracks-options') ), admin_url('customize.php') ); ?>

.

.

.

.

Customizer', 'tracks'), esc_url( $customizer_url ) ); ?>.

Background Texture plugin", 'tracks'), esc_url( $textures_plugin_url ) ); ?>.

.

Customizer', 'tracks'), esc_url( $customizer_url ) ); ?>.