title: VB pop color picker
body: <p><br>I have a question of VB event handler and color picker.
  <br>Now I have a label, and I want when user click it, it pops up a color picker dialog and let user to change the background color of the label.
  <br>Not sure how to implement this, can anyone give me a direction?</p>
  
  <p>Thank you</p>