In the editor highlight in blue only currently selected slide. ( sorting-slides.jpg )
Add spacing between the slides ( sorting-slides.jpg )
Implement an animation when sorting slides. Here is an example of how it preferably should look http://jsfiddle.net/jz5VW/20/.
We will highlight selected slide with the blue color only in the edit mode. In the view mode we will keep slide indicator as it is now.
Provide the user with visual feedback when sorting slides