An Odd Set of Balls

You have a color full set of balls. Make them odd

Click and drag a ball to move between hexes. Keep odd number of balls in each hex. Each hex must also contain an odd number of balls of the same color. Mouse wheel to zoom. Click mouse wheel and drag to move camera.

Credits: Music: Neffex instrumental.

Edit: 

1. Added a color picker as per a request. Choose a color name from the dropdown. Pick the color from the color picker. Then press Set Color

2. Reduced the volume of the music. It should be less obnoxious now ;)