Hi! I am finally getting a working navigation bar module -- you can add items in the app and it should auto-size the navigation bar based on number of items. HOWEVER, I just can't figure out the right `x: _____` formula for making the navigation bar start in the left-hand side and build from there based on the number of items. I don't even know how much I want it to be spaced, but I can figure that out once I get it working properly. Currently I have `x: i * (defaults.screenWidth / itemCount)` which I took from another example. Here's a link to the prototype -- please feel free to offer any suggestions as well -- there's probably better ways to do this.