For white on black the easiest to get are G81-7000, G81-8000 and G80-8113 or 8200. In general none of those give a full doubleshot 100% fitting set for other keyboard. Almost always need to get 2 of those to get the set you want. A good small white on black adapter set would probably do ok for many people with 1.25, 1.5 control and alt, 1.25 win and menu, 2.75 shift, 2.25 enter, 1.75 fulltouch caps lock, 1.5 \|, the nav 6pack, 2x 0 key, 1x2 + and spacebars in 6.25 and 7 since GMK have 6.25 with 'normal' stem positions so you can use them on non Cherry keyboards.