title: Select colors of Android app on installation
body: <p>I've been doing an animated background for android using Processing (APDE, Java). The problem is that currently the background can only have hard-coded colors because in order to have the background, you have to install the apk.</p>
  
  <p>I've searched if it is possible to pass parameters when installing an apk or between apps, but I didn't find anything suitable.</p>
  
  <p>If I have to, I can do a secondary app to select the colors, but I don't know if you can do a color selector natively or in the actual background app.</p>