Changing the background color of an NSCollectionView

In .m, remove this line :

 [self setBackgroundColors:[NSArray arrayWithObjects:[NSColor blueColor], nil]];

And use this code:

- (void)drawRect:(NSRect)dirtyRect{

[[NSColor blueColor] setFill];
NSRectFill(dirtyRect);

}

Also don't forget to change class of NSCollectionView object in IB to CollectionViewBg.

Hope this helps :)

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