As I see on the code, the Window font takes priority over the scene font. So if you attach a font to Scene_Status and another font to Window_Status(or whatever name the status window has), the Window_Status will take his font and not the scene one. I guess. It's been a while since I looked at this code for MV.
But, to give you a little try, take a look at the yanfly message core and try to remove or comment on these lines:
It may solve the outline width and color issue.