I just received a review unit of the Logitech K845ch mechanical keyboard. It has nice clicky keys, and lights under them. It can do five different light patterns at three different light levels. It’s interesting. One of the modes is a “react” mode so the key cap lights when you press it then quickly fades out.

I’ve missed these mechanical keyboards, so much. Thanks to Ed Snider’s work on the CoCoMech, I was made aware that they still exist. The unit I have used quiet switches, but I kinda want one with the loud clicking sound now… Fun!