Before And After

Incredibly, Pika doesn't have undo / redo, which is silly, because it should. So this update adds it. Thanks to @sj26 for the suggestion.

As always, thanks for the support, and if you have any issues or feedback, let me know on GitHub.

Updates

• adds undo / redo (with ⌘ + z and ⌘ + shift + z respectively)