My own modification of Kenney’s Pixel pack. Unity / Unreal Engine 4 compatible! Absolutely free!

Free Transparent Pixel Pack!
Derived from an excellent Kenney’s Pixel Pack, Free Transparent Pixel Pack is the ultimate (and much requested) modification of the original.
This package comes with 49 FULLY TRANSPARENT pixels which you can use to build anything you desire! As with the original, if you need more transparent pixels, you simply download the package again. Will you create the next indie gaming hit?
Unlike Kenney’s, this pack is fully compatible with all modern game engines: it has Unreal Engine 4 support, Unity support (even the beta versions), as well as Godot / Game Maker and others!