Custom design for grocery crud

I have used grocery crud to generate crud in my project. I have number of crud in my project and for each crud I have different design. Is there any way to achieve different designs for each crud forms. If so please do provide with the steps.

In /assets/grocery_crud/themes/ you can find available themes. You should find there datatables and flexigrid. You can create your own by modifying them. To choose own visual, use set_theme function in your controller.

PHP Code:

$crud = new Grocery_CRUD();
$crud->set_theme('datatables'); // you can use your own theme here
... 


In /assets/grocery_crud/themes/ you can find available themes. You should find there datatables and flexigrid. You can create your own by modifying them. To choose own visual, use set_theme function in your controller.

PHP Code:

$crud = new Grocery_CRUD();
$crud->set_theme('datatables'); // you can use your own theme here
... 


The above method only changes the theme. But I need to have different design for each crud. If I had 30 crud I may need to have 30 themes. I need to change the html of each form. 

Maybe I do not understand, what do you mean by desing. :-(

PHP Code:

<?php defined('BASEPATH') OR exit('No direct script access allowed');

class Admin extends CI_Controller {
    public function __construct() {
        parent::__construct();
        $this->load->library('Grocery_CRUD');
    }
    
    public function categories() {
        try {
            $crud = new Grocery_CRUD();
            
            $crud->set_table('categories');
            $crud->set_subject('Categories');
            $crud->unset_columns('id');
            $crud->
                display_as('title', 'Title')->
                display_as('desc', 'Description')->
                display_as('order', 'Order');
            $crud->
                order_by('order', 'asc')->
                order_by('title', 'asc');
            
            $crud->field_type('id', 'readonly');
            $crud->required_fields('title');
            $crud->unique_fields('title');
            $crud->unset_texteditor('desc');
            
            $crud->set_rules('order', 'Order', 'integer');
            
            $output = $crud->render();
            $this->load->view('admin', $output);
        } catch (Exception $e) {
            show_error($e->getMessage().' --- '.$e->getTraceAsString());
        }
    }
    
    public function pages() {
        try {
            $crud = new Grocery_CRUD();
            
            $crud->set_table('pages');
            $crud->set_subject('Pages');
            $crud->unset_columns('id');
            $crud->
                display_as('title', 'Title')->
                display_as('desc', 'Description')->
                display_as('text', 'Text');
            $crud->
                order_by('title', 'asc');
            
            $crud->field_type('id', 'readonly');
            $crud->required_fields('title');
            $crud->unique_fields('title');
            $crud->unset_texteditor('desc');
            
            $output = $crud->render();
            $this->load->view('admin', $output);
        } catch (Exception $e) {
            show_error($e->getMessage().' --- '.$e->getTraceAsString());
        }
    }
} 


Read the GroceryCrud documentation, especially API and Functions list.