3 default => [qw( euro latin science graph )],
4 euro => [qw( windows ukext macos macos-abc weur eurkey msx )],
5 latin => [qw( ipa olpc boyeg drix )],
6 science => [qw( symbolics apl spacecadet )],
7 graph => [qw( unigraph emojiworks )],
8 extra => [qw( msx-graph p8scii zoo )],