gistfile1.m

- (void)drawRect:(NSRect)dirtyRect
{
    NSBezierPath *path = [self _popoverBezierPathWithRect:[self bounds]];
    
    CGContextRef ref = [[NSGraphicsContext currentContext] graphicsPort];

    //Fix blurred edges by offsetting by half a pixel
    CGContextTranslateCTM(ref, 0.5, 0.5);
    
    [self.color set];
    
    
    //Gradient and extra stroke for HUD mimic
    if(self.appearance == NSPopoverAppearanceHUD){
        
        NSGradient *borderGradient =
        [[[NSGradient alloc]
          initWithColorsAndLocations:
          [NSColor colorWithCalibratedWhite:0.65 alpha:0.85],0.0,
          [NSColor colorWithCalibratedWhite:0.15 alpha:0.85],0.08, nil]
         autorelease];
        [borderGradient drawInBezierPath:path angle:-90];
        
        [path setLineWidth:1];
        [self.hudStroke set];
        [path strokeInside];
        
    }else
        [path fill];//Default fill
    
    [path setLineWidth:_borderWidth];
    [self.borderColor set];
    [path stroke];
    
    

}