there is a problem in the arabic language , every letter in the arabic language have 3 cases, at the start, middle and at the end, the problem is that the game can't know how to write it correctly!
it should look like : خشب
and it's look lie : خشب
also the font is completely messy and unreadable, there is a simple solution for it! if you can make something like if the arabic language is selected then use TrueType font or so, there is a mod called "BetterFonts" , it's really helpful but it's a mod, and we want it to be official
and we have another problem too, we can't write any arabic letter in the chat! it's because of the LightWeightJavaGameLibrary (LWJGL), there is a problem in the keyboard layout and they've fixed it in the last updates, if you can fix it too that would be Awesome!
i can post some images if you want ..