If you are writing more than one language on your computer or typewriter, you might want to see also foreign language characters on your keyboard. You can use for this JL-types' keyboard sticker set, which contains 119 stickers (basic Latin, Finnish/Swedish, Russian, Baltic characters, punctuation marks, numbers, and special characters) or 238 stickers (119 set + stickers for all European languages using Latin, Cyrillic or Greek alphabet). Keyboard stickers are included to all JL-types' foreign language typefaces packages.
In the sticker package there are clear installing instructions.
N.B.! White stickers are not anymore available from 04/2020!
The orange red stickers are clearly visible on both ordinary light, dark and grey keyboards and also black keyboards on many laptop computers. The sticker size is 5,5 mm x 6 mm. This means, that stickers and the original characters on keycaps are both visible.
In the picture you can see a fragment of the sticker sheet (these are transparent; the black backgroud is only for reference).