NOTE : YOU NEED A CUSTOM ROM WHICH SUPPORT TO CHANGE STATUS BAR HEADERS IN ORDER TO USE THESE.

HOW TO USE :
settings > customization > status bar > headers.

FOLLOW ME : https://plus.google.com/105142287214759768365

If your rom doesn't has this feature yet ask your device or rom maintainer to add this.

As for as I know below mention rom's support this customization :-
- AICP
- OMNIROM
- AOSIP
- AOSP EXTENDED
- RESURRECTION REMIX
- PURE NEXUS
- DIRTY UNICORNS
- VALIDUS
- TESLA N
- NITROGEN-OS
- XENON HD
- COSMIC OS

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