change item-left-edit into item-right-edit into Ionic

Sorry if my question feel strange, I'm a beginner in Ionic framework.

I put a show-delete="true" on my ion-list and a ion-delete-button. This is working great.

But now I want this button to be on the right.

When I take a look at the generated code, all classes are "item-left-edit" and "item-left-editable".

I'd like to generate the "item-right-edit" and "item-right-editable".

I don't find any information about theses generated classes in docs... If anyone have an idea how should I proceed ?

Edit : here is the piece of code:

 <ion-list show-delete="true" side="right">
                <ion-item ng-repeat="task in activeProject.tasks" class="item-right-editable">
                    {{task.title}} 

                       <ion-delete-button class="ion-android-cancel" ng-click="deleteTask($index)"></ion-delete-button>

                </ion-item>
            </ion-list>

I finally found something by modifiyng the ionic.bundle.js file like this : 

    var ITEM_TPL_DELETE_BUTTON =
  '<div class="item-right-edit item-delete enable-pointer-events">' +
  '</div>';

instead of 

var ITEM_TPL_DELETE_BUTTON =
  '<div class="item-left-edit item-delete enable-pointer-events">' +
  '</div>';

Anyway, i was wondering if there where more "proper" way to do that...