How to extend style manger Sector's property

Hi @artf ,

We have created a custom asset manager which is working perfectly for image component. However we are not able to call custom asset manager for background image. 

Tried to access using this methods
          var stm = editor.StyleManager;
var fileType = stm.getType('file');
stm.addType('file',{
 model: fileType.model,
view: fileType.view.extend({
        events: {
     ......
   }
})
})

Is there any other method which we can use editor.StyleManager.getSector() and override the function?


Thank you,