color picker won't disappear

[esmemstad]

I was customizing the visualizer to fit my wallpaper, and I wanted to pick a color from the wallpaper itself. I opened the color picker, but it wouldn't select a color, and even when I exited out of the settings, the color picker stayed on screen. It's hanging out in the right hand corner of my browser as I type.
Also, to clarify, the curser works fine, but the issue is with the square in which you can see the pixel it's picking as the color. I hope that makes sense, and I hope someone can help me figure out this issue.