A package forked from activate-power-mode. Original package was overwhelming, these effects are on delete only. Available through the Atom package installer (https://atom.io/packages/activate-power-mode-delete).
Activate with Ctrl-Alt-o or through the command panel with
Activate Power Mode: Toggle. Use the command again to deactivate.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.