Added the letters in white. You can't see it on the picture but they're actually engraved.
Couldn't find any PBT in ISO, so I opted for ABS...
Btw this is unfortunately but on WASDkeyboards you can only choose the font & layout of the letters in ANSI, there is no choice in ISO...
I'm still wondering about which keys I'm gonna turn white... You see, on the ISO layout, the bottom row is only 6 letter and 4 symbols(edit:5symbols, forgot the <>), so if I exclude the symbols, the design is kinda uneven (second photo).
Thoughts ?