Change the default Languages

Open src/common/Languages.js and edit the default language for the app at the bottom up the page

  let Language = Languages['en'];

Change the language to RTL (right to left)

Open src/common/Constants.js and edit the default option to RTL: true

On ios you need to change the plist like this screenshot:

beonew 2

Config Xcode to support RTL as default

To add more font, you can able to add to the collection from "Fonts provided by application" (see above screenshot)