Suggestion: Signature visibilty

Another suggestion:

many people use very 'big' signatures and often it's hard to see, what's part of the comment and what's the signature.

So I thought about how to make a better visibility of 'signatue area' and came up with this: the signature area got a sligthly different color (in my example: #edf2eb) than the comment.

Well... nothing big, but for me a nice addition
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=Dediggefedde made a Greasemonkey user style of this suggestion (thanks). You can find his work here: [link]