public void removeColorTarget(int i) {
        colorBufs.remove(i);
        for (; i < colorBufs.size(); i++) {
            colorBufs.get(i).slot = i;
        }
    }
Removes the color target at the index.
<p>
Color targets above the removed target will have their
slot indices shifted accordingly.

@param i
jme3-core/src/main/java/com/jme3/texture/FrameBuffer.java