One more thing, Xkbd allows for three different button appearances.

Square, rounded, and none.

I would just go with none so it would look something like this.



Of course the layout would look like an actual, physical keyboard though, hence the need to run Xkbd 5 different times.

Once the layout is set then I would replace all the keys with .png images. That would be over 100+ specially drawn images by the way.

I probably would need help on that since I have no graphic design background knowledge.

Anyway, I'm just saying that it can be done.