Here is the season 6 cover art, and yes, its pink background with green lettering. The picture of Roseanne and DAn is obviously from season 9, but it's a nice picture, and looks prety close to what Roseanne looked like in season 6. Here it is:(I got it from Amazon)

(Sorry I can't post it. It won't let me for some reason. It's at Amazon.com, under Roseanne season 6. Can someone post it for me?)