Color Chooser progress

Is the color chooser a work in progress?  I like the new eyedropper tool, but there are a few other things in the dialog that could use some work:

• The two sliders aren't labeled.  I had to play to see what they do (alpha & brightness?).  
• Alpha isn't represented in the text fields at the top
• Most importantly, I'd like the HBS sliders back.  It's much easier for me to think in HBS terms than RGB.  Even if the right slider is a Brightness slider, having numerical values for HBS is sometimes useful.