Yes, as bengtler says, it’s just a png file set as the background to the navbar. I had to set it on:
background:url(’…/images/xxxx.png’) repeat top;
This was with ionic 0.13; I did upgrade to 0.14 but it killed the custom nav button positioning etc. and there wasn’t time to fix it, so I reverted - so note that this css may not work for you. The next release will be based on 0.14 or whatever is about to come out as we’ll have more time.
The app started as a bunch of PSDs from a design agency which I had to chop up and use within the app, so I didn’t have to worry about coming up with the design, just implementing the approved design.