Is your feature request related to a problem? Please describe.

For extensions which support both Joomla 3 and Joomla 4, it might still use chosen HTMLHelper::_('formbehavior.chosen', 'select'); for select dropdown.

However, the style for chosen dropdown looks much different with the standard select dropdown in our backend template. See the screenshots below:

• With chosen loaded
  

• Without chosen
  

Describe the solution you'd like

The backend template has style support for chosen like in our frontend template so that the style of select tag looks the same for standard select and select with chosen loaded. That would make the layout looks consistent, especially for third party extensions still support both Joomla 3 and Joomla 4.

We have css code for frontend template already, so it should be easy to port it for our backend template.