[pacebentley]

Looking through my 1988 Topps box of stars and rookies I found several variations in various quantities, but I had several of all of these in each version:

Wade Boggs #200
In the name banner, top black triange... filled / unfilled (white dot visible)


Will Clark #350
Bottom left corner of the blue border... filled / unfilled (white dot visible)


George Brett #700
Where name banner (top black triangle) and green border meet... filled / unfilled (white dot) / unfilled (white dot) & pink line on left edge of tiangle


Barry Bonds #450
In name banner just below top black triangle... no bleed into white border / bleed into white border / bleed into white border & unfilled name banner


Don Mattingly #300
Between bottom purple border and the black outline frame... filled / white line / red line / red & white lines


Ryne Sandberg #10
Similar to the Mattingly variations... filled / yellow line / white line


The same type of variations that appear on the Mattingly and Sandberg cards also shows up on the Tom Glavine Rookie, so this might be something that is set-wide. Another way of looking for this variation is to look at where the top black triangle in the name banner and the colored border meet. The variations have a white line running along where these two edges meet.