[mythtv-theming] background in Arclight

[David Morrison]

The early Arclight screenshot shown here

http://www.fecitfacta.com/Arclight/Gallery.html#12

shows a green, tendrily thing as a background for the main menu.  The
background images in the recently released source:

Arclight/Backgrounds/tendrils[123].png

are chunky blue/green pixellated things.  At least, they're not very
tendrily.  Is this a deliberate change of art for the final release?