Get current's theme logo
Drupal 8
$path = '/' . \Drupal::config('MYTHEME.settings')->get('logo.path');
Drupal 7
global $theme;
$path = theme_get_setting('logo', $theme);
$path = '/' . \Drupal::config('MYTHEME.settings')->get('logo.path');
global $theme;
$path = theme_get_setting('logo', $theme);