How Arabic number Keypad Plugin?

Framework7 Keypad Plugin is awesome and easy to use (with a the auto initialization way)
But since my app is in Kurdish, the numbers in the keypad (both numpad and calculator) should be Arabic number, like ١٢٣٤٥٦٧٨٩٠, (but in my custom font, called Google Noto Kufi Arabic)
So, how do I do that?

I also like to remove the triple letters in each number key in the numpad, and also to customize the size of fonts, etc.

Documentation describes how to specify custom characters on buttons

Thanks a lot. With the docs, I customized the js files easily (along with searching the source code). It was actually easy and trivial.