Ok guys, I've loaded a new theme for that board.
This is about the best I can do at short notice and given all the other stuff on my plate.
If you want things like the "Locked topics" and "Pinned topics" text in the message index bars translated to Arabic I'm happy to edit that in if you can give me the translation in the form of html entities.
The linktree and a couple of other minor items are a little bit out of order but I'll look at sorting those later. The templates are basically good to go and font size is the same in posts and in the reply form and in the quick reply. Font size in quotes is fractionally smaller than posts, as is usual, but still large enough.
All eleven variants of the site default theme are available and hitting the changer button will not redirect you away from the page you are on, so you can try them and see which one you like best. The theme should remember your preference when you go to other boards and back. Hass, you would probably prefer Silver Mist at a guess.
Note that this theme is only intended for auto loading in the Arabic board and is missing several superfluous templates, so I do not advise selecting it permanently in your profile.
I also have not tested in any silly browsers that couldn't render a page if Bill Gates' life depended on it so don't bother grumbling about that.
It should be pretty good on the whole though. Enjoy.