code: public static boolean isOpaqueTransparentExclusive(ColorRgba colorA, ColorRgba colorB)
      {
          Check.notNull(colorA);
          Check.notNull(colorB);
  
          return isOpaqueTransparentExclusive(colorA.getRgba(), colorB.getRgba());
      }
docs: Check if colors transparency type are exclusive (one is {@link ColorRgba#OPAQUE} and the other
  {@link ColorRgba#TRANSPARENT}).
  
  @param colorA The first color (must not be <code>null</code>).
  @param colorB The second color (must not be <code>null</code>).
  @return <code>true</code> if exclusive, <code>false</code> else.
  @throws LionEngineException If invalid arguments.