The keyboard on the Apricot uses round capacitive foam pads under the keys. This means the keys had to be square, or they needed a mechanical thing like the spa

The keyboard on the Apricot uses round capacitive foam pads under the keys. This means the keys had to be square, or they needed a mechanical thing like the space button on the photo here: https://www.baffo71.com/details.php?id_img=7 https://www.baffo71.com/details.php?id_img=7 So, I think it is a mechanical/electrical limitation.