Custom Navigation Bar Icons

[harrygooz33]

Hello.
This is my first post on Android Central.
I've had my beautiful Nexus 5 since April now, and have got it just the way I want it (screenshot below for the curious ) but I was wondering if it is possible to have custom navigation bar icons at the bottom without rooting. I have seen many images on this forum and people have custom icons on it. Do you need to root in order to do this, or can an app do it?

Here is my home screen for those who wonder:

 

[Bront]

You mean the Back, Home, and App switching icons?

No.

 

[harrygooz33]

Oh okay.
I have seen apps like this but not sure if they worked or not.
Thanks for the answer!

 

[jball32]

So easy to unlock bootloader/custom recovery/root to enable all those custom features you want.
I actually disable my navigation keys and use pie controls so I pick up extra screen space .

Nexus 5 via Tapatalk