The Swiss version is a bit weird as the lettering for the mutated vowels only shows the lowercase variants, twice. It would be nicer if it actually showed lowercase & uppercase mutated vowels:
Current version (Request: Review of Norwegian, Portuguese, Swedish, Swiss, Slovenian, Thai, Hungarian, and Danish keyboards - #5 by nrp)
èè üü éé öö àà ää
Should be:
èÈ üÜ éÉ öÖ àÀ äÄ