Let's open the
index.html file again (in any browser). Note that there are still some icons that are not customized:
These icons are not in the slice tool yet and, unfortunately, you will have to customize these manually (if you do not mind using the default ones). To create these new icons, you can use GIMP, Fireworks, Photoshop, or any other graphics edition software.
These icons are the only things not yet customized. But as you can see, creating custom themes in Ext JS 4 is much easier than creating them in Ext JS 3, where you had to do everything manually.