I like the idea, but my only nitpick isn't with popbox itself, it's with the background canvas. Replace it with a normal grey background or something. It looks

I like the idea, but my only nitpick isn't with popbox itself, it's with the background canvas. Replace it with a normal grey background or something. It looks pretty, but causes my browser to become sluggish. Firefox's CPU usage goes from about 5% to bouncing from 60-80% when I open the tab, and goes back down when I close it.