I haven't been checking updates for a while, I noticed that the color picker is finally implemented, that's great!
Unfortunately the dither preview is still broken - when zooming the image the dither is applayed to the screen pixels, not to the image pixels, meaning you get different results with different zoom levels, which is pretty terrible. And also with pixelisation turned off the dither effect doesn't show at all (it used to in previous versions). This means I can't apply dither to the image without changing it's resolution and I'm pretty sure I was able to this in the past. It was a very useful feature.