/**
     * Return a drawable object associated with a particular resource ID.
     * Various types of objects will be returned depending on the underlying
     * resource -- for example, a solid color, PNG image, scalable image, etc.
     * The Drawable API hides these implementation details.
     *
     * mtwebster: This version also applies a Porter Duff color mask onto the object before
     * returning the object. Put in Resources to give reusability, I plan on
     * applying this to other parts of the gui
     *
     * @param id The desired resource identifier, as generated by the aapt tool.
     *            This integer encodes the package, type, and resource entry.
     *            The value 0 is an invalid identifier.
     * @param mask The color mask to use (alpha-r-g-b)
     * @param masktype The Porter Duff filter mode
     * @throws NotFoundException Throws NotFoundException if the given ID does
     *             not exist.
     * @return Drawable An object that can be used to draw this resource.
     * @hide
     */
    public Drawable getDrawable(int id, int mask, Mode maskType) throws NotFoundException {
        synchronized (mTmpValue) {
            TypedValue value = mTmpValue;
            getValue(id, value, true);
            Drawable tmpDrawable = loadDrawable(value, id);
            tmpDrawable.setColorFilter(mask, maskType);
            return tmpDrawable;
        }
    }