I worked very hard on that Workbench theme, it works very well for 4 colours. I have a whole bunch of preset palettes I can switch between if a boy wants to use it anyway.
I never liked having cords hanging out on the same side as the mouse, which was the reason I put the USB port on the other side, so I could finally use my A600 without the mouse and control pad plugs hanging out 10cm over the mouse pad.
Notice that the Acorn RiscPC I'm using for a monitor stand is ALSO a 600