NSWindow frame with GSScaleFactor

[dr_clow]

I am trying to investigate the math issues facing GNUStep layout system when GSScale is set to something non-1. I am trying to account for all the math that layouts the contentView (I have been looking into both GSDecorationView and NSWindow) . Just a couple questions: 

1) In NSWindow.m, line 1122, is there a reason 1 is added? 

_minimumSize = NSMakeSize(_frame.size.width - contentRect.size.width + 1,

                            _frame.size.height - contentRect.size.height + 1);

2) Where is styleoffsets defined? I see on line 793 in GSDisplaySever.m the following

- (void) styleoffsets: (float*) l : (float*) r : (float*) t : (float*) b 

    : (unsigned int) style

{

  [self subclassResponsibility: _cmd];

}

My hunch is that when GSWindowDecoration view calls this  [GSCurrentServer() styleoffsets: l : r : t : b : style]; on line 588, it needs to multiple the results by the scale factor?

Because the content is currently shifted by a combination of the GSFactor and title bar height (which I am changing in the Defaults)  to confirm that these are the factors that is creating the offset.