Change the style of select category

Change the style of select category to add new listing. see this example Attachment 393

Plz someone answer this

Hello Tariz,

If you want you can create a new ticket with your request and we will do it like customization for you.
But if you want do it yourself I can show you place where is located this code.
Please answer me how do you want it?

I would be interested to replace with a lot of select, for example:

Attachment 537

Hello Giuseppe Zappala,

If you want me to create it you should create a ticket with your request but it will cost you some extra fee.