Though not yet confirmed, the latest rumors reveal that the upcoming Android N will have a new on-screen navigation bar with redesigned home button. The home button on the leaked navigation bar will have four different color accents in its edges, which brings a different shape to the button, instead of the circle shape. Whether you like it or not, you can get the Android N leaked navigation bar right now on your phone.
N Nav Bar brings leaked Android N leaked navigation bar to any phone that support CM theme engine. The app replaces the on-screen navigation bar on your phone with the newly designed navigation bar from Android N. N Nav Bar is a free download on Play store that support custom ROMs like CyanogenMod, Paranoid Android or AOKP with theme engine in it.
How to install N Nav Bar
About Android N’s redesigned home button: As I told above, the redesigned home button on the Nav bar features four color accents (red, green, blue, and yellow) around its edges. It is unclear what these four-color edges represent for, but it will give a new look to the onscreen navigation bar.
Note that the redesigned onscreen home button for Android N not yet confirmed. The above shown screenshot is not an actual screenshot of the redesigned navigation; it is just a restoration of the upcoming nav bar of Android N.