You will need a compatible launcher that supports custom icon packs. Compatible with Go Launcher, Apex Launcher, Nova Launcher, ADW Launcher, Holo Launcher, Action Launcher, Smart Launcher and more. Note that this is not a standalone app. Apply icon pack from launcher's settings after install.
More details below:
Features:
760+ icons and counting.
Custom icons such as Space Invaders and more.
Optimized for 1080p display.
To apply custom icons:
Apex Launcher and Nova Launcher Prime: Place shortcut on homescreen > Long press on shortcut and select Edit > Press on the app icon > Select (from) Icon Pack > Select Minimal Pixel > Choose the icon you want to apply.
Desktop Visualizer: at the DVR setup screen > Press Select Icon > Select Others > Select Minimal Pixel > Choose the icon. (Custom icons are located at the end of the list)