Needs Activate-Power-Mode package installed.
Activate with Alt-E or through the command panel with
Activate Killer Instinct Mode: Toggle. Use the command again to deactivate.
or activate by going
With the atom package manager:
apm install activate-killer-instinct-mode
Or Settings ➔ Packages ➔ Search for
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.