Gudadantza: Not owning the game yet, but here is a trick to make the game look better using the alternative cga palette. It is valid for other games from the same prehistoric era.

Edit the dosbox.conf file changing the machine=svga_s3 with machine=cga. This makes the game use the real cga machine/palette. It will look the same but it will let you enable the alternative sets of cga palettes if available.

Press F12 in game and you will switch palettes. You will See the difference. Now it should look closer to the Apple II version