Setting NStatusItem alt image resulting in application crashing....

Question

I'm trying to insert a dark image into the status meno of my application and a white as the alt. For some reason when I script in the alt attribute shown below in the code my application crashes.
-(void)awakeFromNib{
statusItem = [[[NSStatusBar systemStatusBar] statusItemWithLength:NSVariableStatusItemLength] retain];
[statusItem setMenu:statusMenu];
[statusItem setImage: [NSImage imageNamed:@"hat-bar.png"]];
[statusItem alternateImage: [NSImage imageNamed:@"hat-bar-light.png"]];
[statusItem setTitle:@""];
[statusItem setHighlightMode:YES];

Answer 1

Try this:
[statusItem setAlternateImage: [NSImage imageNamed:@"hat-bar-light.png"]];