Drawable.setColorFilter() not working on Android 2.1
<pre><code>Drawable d = new BitmapDrawable(BitmapFactory.decodeResource(
    getResources(), R.drawable.ic_watch));
d.setColorFilter(new LightingColorFilter(color, lightenColor));
imageView.setImageDrawable(d);
</code></pre>

<p>On Android 2.2 (emulator) and 2.3 (N1) setColorFilter() works fine. Why doesn't it work on 2.1 (tested on emulator)? Another Android bug?</p>
