chore(mac): draw three-color stripe correctly in About box

due to Sonoma change of default setting in UIView
where clipsToBounds is defaulting to false, the
stripe in the About box was appearing much taller
than the expected 7 points

mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMBarView.m

@@ -7,31 +7,39 @@
 //
 
 #import "KMBarView.h"
+#import "KMLogs.h"
 
 @implementation KMBarView
 
+/**
+ * draws stripe in three colors as part of Keyman branding
+ * over half is orange, followed by red and blue segments
+ */
 - (void)drawRect:(NSRect)rect {
   CGContextRef context = (CGContextRef)[[NSGraphicsContext currentContext] CGContext];
 
-  NSRect rect1 = NSMakeRect(0, 0, rect.size.width*0.56, rect.size.height);
-  NSRect rect2 = NSMakeRect(rect1.size.width, 0, rect.size.width*0.23, rect.size.height);
-  NSRect rect3 = NSMakeRect(rect2.origin.x + rect2.size.width, 0, rect.size.width*0.21, rect.size.height);
+  NSRect barRect = self.frame;
+  os_log_debug([KMLogs uiLog], "KMBarView drawRect: %{public}@ frame: %{public}@", NSStringFromRect(rect), NSStringFromRect(barRect));
+
+  NSRect orangeRect = NSMakeRect(0, 0, barRect.size.width*0.56, barRect.size.height);
+  NSRect redRect = NSMakeRect(orangeRect.size.width, 0, barRect.size.width*0.23, barRect.size.height);
+  NSRect blueRect = NSMakeRect(redRect.origin.x + redRect.size.width, 0, barRect.size.width*0.21, barRect.size.height);
 
   CGContextSetFillColorWithColor(context, [NSColor colorWithSRGBRed:246.0/255.0 green:137.0/255.0 blue:36.0/255.0 alpha:1.0].CGColor);
   CGContextBeginPath(context);
-  CGContextAddRect(context, rect1);
+  CGContextAddRect(context, orangeRect);
   CGContextClosePath(context);
   CGContextDrawPath(context, kCGPathFill);
 
   CGContextSetFillColorWithColor(context, [NSColor colorWithSRGBRed:204.0/255.0 green:56.0/255.0 blue:70.0/255.0 alpha:1.0].CGColor);
   CGContextBeginPath(context);
-  CGContextAddRect(context, rect2);
+  CGContextAddRect(context, redRect);
   CGContextClosePath(context);
   CGContextDrawPath(context, kCGPathFill);
 
   CGContextSetFillColorWithColor(context, [NSColor colorWithSRGBRed:121.0/255.0 green:195.0/255.0 blue:218.0/255.0 alpha:1.0].CGColor);
   CGContextBeginPath(context);
-  CGContextAddRect(context, rect3);
+  CGContextAddRect(context, blueRect);
   CGContextClosePath(context);
   CGContextDrawPath(context, kCGPathFill);
 }