How to : customize AOSP settings?

Im trying to build aosp for my devkit, and i'd like to know where should i look to for :

1. • to changing font size of texts in settings section ( i've replaced droid fonts with another one but the new font kind large) or global font setting.
2. • to change position of texts in settings section ( usually all texts are in left side, i want to try and put it in right side for example).
3. • the language locale names that showed in settings/language & keyboards.. where are they stored . i looked into LocalePicker.java but could not figure it out.

For example i want to change a locale name from english to it's native language (In some android builds i've seen arabic locale was in english, an开发者_开发问答d some other builds it was shown in native arabic العربية).