The hotbar you use looks a lot like the one I suggested, Wormerine.
You just don't have red lines anymore but the visually more appealing stylised gold lines, you have 4 divisions rather than 3, the hotbar as a whole is longer and items are 4 icons on it rather than 6 to 12.
Agree! Perhaps the red lines are a bit garish, but it doesn't bother me - one also wants to clearly communicate that those can be moved, which while clean looking, your design doesn't. As I said, I am overall quite happy with the functionality.