XF 2.2 Formatting table BB code

[frm]

Hopefully, this is possible and through extra.less, but is there a way to format just this specific line (highlighted in yellow and for all columns, not just the one [example only to point out which line I'm speaking of]) as the grey line to break it up fades a bit too much into the heading (either remove it completely, darken it in greyscale, or use the existing red below the table), making it not look too much like a "cell".



Or is the only solution to this to adjust the grey lines for the entire table (unsure which color it is in the default theme) to be darker?

Thanks!