Playing with CSS...

[Alex]

In years I became better at a number of things, fortunately CSS is one of those

However, I don't think I have good news for the vertical line between poster and post. The sshot Prpl found was using tables, and that line was just the table border itself.
Here layout is slightly different (tableless), but in any case I have the feeling a vertical line would look.... "strange".
It may be me, but don't you feel poster and post separated enough already? To me it looks pretty fine.

[Prpl_Mage]

You might be right.

How about a border between background and posts then? the dark post background is the same as the overall background, and I just can't figure out what it used to look like before

[Alex]

What about now?
I've added a light gray border around all posts

[Prpl_Mage]

I think I preferred it without, it even encased all the other stuff in the forum.

Maybe we could just slightly alter the colour background of the dark posts to a slightly lighter shade instead.

[Alex]

Yet another test applied. no more border, and Different bgcolor

[Dr. Ace]

Holy damn it is so bright it hurts my eyes.

[Archem]

It just keeps getting better.

[Prpl_Mage]

Okay, bad colour. Something more like the background only slightly brighter. Like #00002E or something.

[Alex]

done with #00002E. Any better?

[Prpl_Mage]

Tons. Thanks Alex

[Archem]

Beautiful.

[Dr. Ace]

Way better, doesn't hurt my eyes anymore.

[Momeka]

Fantastic, such an improvement.

[Grandy]

Looks great

[Razor]

Where's our other glorious leader, Lucas? He should see these beautiful things.