I want customize directive ionTabNav

Hi everyone,
Because my project need use images replace for current icon font.
can we customize “directive ionTabNav” for use images as icons? who can help?

current tab-nav

<ion-tabs class="tabs-positive tabs-icon-only">
        <ion-tab title="Home" icon-on="ion-ios7-filing" icon-off="ion-ios7-filing-outline">
          <!-- Tab 1 content -->
        </ion-tab>
        <ion-tab title="About" icon-on="ion-ios7-clock" icon-off="ion-ios7-clock-outline">
          <!-- Tab 2 content -->
        </ion-tab>
        <ion-tab title="Settings" icon-on="ion-ios7-gear" icon-off="ion-ios7-gear-outline">
          <!-- Tab 3 content -->
        </ion-tab>
      </ion-tabs>

i want change to

  <ion-tabs class="tabs-positive tabs-icon-only">
            <ion-tab title="Home" img-on="img-link.png" img-off="img-link.png">
              <!-- Tab 1 content -->
            </ion-tab>
            <ion-tab title="About" img-on="img-link.png" img-off="img-link.png">
              <!-- Tab 2 content -->
            </ion-tab>
            <ion-tab title="Settings" img-on="img-link.png" img-off="img-link.png">
              <!-- Tab 3 content -->
            </ion-tab>
          </ion-tabs>

output will display

<div class="tabs">
  <a class="tab-item">
    <img src="img-link.png">
    <span>title</span>
  </a>
  <a class="tab-item">
    <img src="img-link.png">
    <span>title</span>
  </a>
  <a class="tab-item">
    <img src="img-link.png">
    <span>title</span>
  </a>
</div>

Hi @hoangloi ,

With out create a directive you can do.
Take a look…
write css in tabs.htnl page–

.ion-home:before,.ion-checkmark:before{
content: "";
}
       .ion-home{
                background-image: url('img/about_active.png');
            }
            .ion-checkmark{
                background-image: url('img/about.png');
            }
    <ion-tab title="" icon-on="ion-home" icon-off="ion-checkmark" href="#/tab/home"> 
<ion-nav-view name="tab-home">
<//ion-tab>

@shashikant i want use {{value}} in controller.js for background? with your solution it’s seem not solve.

For me it is working…

@shashikant i know this solution work well with fix image. i have example :
controller.js

$scope.aboutIcon 		= "img/128/data/add_database-128.png";  

main.html

<style>
    .ion-home:before,.ion-checkmark:before{
    content: "";
    }
           .ion-home{
                    background-image: url('{{aboutIcon}}');
                }
                .ion-checkmark{
                    background-image: url('{{aboutIcon}}');
                }
</style>
        <ion-tab title="" icon-on="ion-home" icon-off="ion-checkmark" href="#/tab/home"> 
    <ion-nav-view name="tab-home">
    </ion-tab>

not working