What does b stand for, and what is the syntax behind b+sr+Latn? : <p>By default, Android has always displayed Serbian in Cyrillic, but since 7.0, users can choose between Cyrillic and Latin script. Apps (mostly from Google) ususally   puts the Cyrillic strings in <code>sr</code> and the Latin strings in <code>b+sr+Latn</code>. However, <code>b+sr+Latn</code> is very different from the usual convention of using dashes (e.g. <code>sr-rRS-port</code>).</p>

<p>What does b stand for? What is the syntax, and what more can I specify with this?</p>
