LED joysticks that can select from over 16 million color options. This might not be practical, considering only about 25 different color settings would have been sufficient.
So the RGB leds come with 256 levels of brightness for each color. Don't worry, article-writer, the company wasted zero extra effort on this "feature."
I consider getting one of these things every once in a while, but then I remember that I've pulled my hacked PSP out of the drawer like three times in the last ten years, and I shrug and move on. It's generally more fun for me to plug a USB controller into my computer for retrogaming.