Standard bottom row keys and cheap keys. It's driving me crazy that it's 2021 and Logitech is still making it. I was able to replace the keycaps with some PBT keycaps. Caps lock and space cannot be changed as this is non-standard. You slightly improve the RGB brightness by changing the keycaps. I haven't tried swapping the switches yet as I'm actually quite happy with the linear switches that come with the board.
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