Fix redraw issue on GB.

// FREEBIE

src/org/thoughtcrime/securesms/ConversationActivity.java

@@ -862,6 +862,7 @@ public class ConversationActivity extends PassphraseRequiredActionBarActivity
         calculateCharactersRemaining();
         composeText.setTransport(newTransport);
         buttonToggle.getBackground().setColorFilter(newTransport.getBackgroundColor(), Mode.MULTIPLY);
+        buttonToggle.getBackground().invalidateSelf();
       }
     });