Khaled this is exactly the point the researcher in the video I posted above is trying to make. Latin has a vertical rhythm but Arabic doesn't have that. If users don't see the difference and it's not functioning what's the point of slanting in Arabic? Your example on blackletter next to Roman is extreme. I was talking about construction not a complete different style. Of course the difference has to be subtle but it's possible to use even Ruqah and make it more unified with the naskh as an alternate for emphasizing. It's called designing a family. Putting different styles next each other is a typographer's job not a type designer.Khaled Hosny said:There are practical problems with slanting Arabic though, a word with no vertical lines like “حب” will not stand much (if at all) when slanted: “حب”, so structural differences are important in Arabic, though they might not even help much here either.
I can’t even tell from first glance which is the slanted one!