NSWindow+CCDWindowTinting.h

#import <Cocoa/Cocoa.h>

@interface NSWindow (CCDWindowTinting)

• (NSColor *)baseWindowBackgroundColor;
• (void)removeTint;
• (void)tintWithColor:(NSColor *)color; @end

NSWindow+CCDWindowTinting.m

#import “NSWindow+CCDWindowTinting.h”

NSColor *baseWindowBackgroundColor;

@implementation NSWindow (CCDWindowTinting)

• (NSColor *)baseWindowBackgroundColor { if (!baseWindowBackgroundColor) baseWindowBackgroundColor = self backgroundColor] retain];

  return baseWindowBackgroundColor; }

• (void)removeTint { [self setBackgroundColor:nil]; [self performSelector:@selector(display) withObject:nil afterDelay:0]; }

• (void)tintWithColor:([[NSColor *)color { NSRect winRect = [self frame]; NSImage *img = [[NSImage alloc] initWithSize:winRect.size];

          winRect.origin = NSZeroPoint;
  
    [img lockFocus];		
    [color set];
    NSRectFillUsingOperation(winRect, NSCompositeSourceOver);
  
    self baseWindowBackgroundColor] set];
    [[NSRectFillUsingOperation(winRect, NSCompositePlusDarker);
    [img unlockFocus];
  

  [self setBackgroundColor:[NSColor colorWithPatternImage:img]]; [self performSelector:@selector(display) withObject:nil afterDelay:0];

  [img release]; }

@end

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A quick addition for window tinting. The backgroundColor will tile if the window size changes but you can overcome that if you need to. Enjoy.

– RyanStevens