Thread Subject: MarkerFaceColor

Hi!
I have a self-made plot function which uses different number of lines with 'squares' as Markers. Plot gives different number of lines with no MarkerFaceColor (it is transparent). I would like to set MarkerFaceColor to be full and the same color as lines.
 I tried:
set(1,'MarkerFaceColor','Auto' ) and it feels all Markers whit white color.

Unfortunately I cannot found proper command. Have sb a solution?
Thank you!