Arabic on the new eink nook

[Hedaya]

Hello,

I've been trying and trying. I've read some of the notes on using css style notes on Calibre. I put this:

I'm struggling with this.

I put:

@font-face { font-family: "Trado"; font-weight: normal; font-style: normal; src: url(res:///Data/font/trado.ttf);
}
@font-face { font-family: "Trado"; font-weight: bold; font-style: normal; src: url(res:///Data/font/tradbdo.ttf);
}
body { font-family: "Trado", serif;
}

But it didn't work.

Help please!