Global "Text" color and "TextInput" text color
<p>I've started to work with react-native few days ago and after some extensive search I weren't able to find answers for 2 (simple?) questions:</p>

<ol>
<li><p>How can I change the color of ALL <strong>Text</strong> components in react-native?
What are the best practices? Creating an own Text component with
styling and reusing it everywhere?</p></li>
<li><p>Change the default text color of <strong>TextInput</strong>. I managed to change the
    placeholder color, and also the underline color in android, but I
    can't find anything on how to change the input text color (stays
    black).</p></li>
<li>Can I change the font / text color for <strong>everything</strong> anyhow? This
option seems to be missing.</li>
</ol>

<p>Thanks for any help and cheers</p>