[Users] CM message digest goes grey after a sig separator

[Cliff Laine]

The digest is somewhat difficult to read as it gets greyed out after a
sig separator. Here's what I see in my message pane:

http://violetpublishing.com/media/cmgrey.png

Is there a way of stopping this behaviour?

Thanks
Cliff
CM 3.8.1 Linux 3.5.0-17-generic (i686) Mint 14 32-bit