macOS Mysterious NULL Coming From NSUserDefaults

[bobber205]

I've been enjoying NSUserDefaults when going through the Hillegeass book.

I've decided to do a small app that has two colors it stores. I get these colors from a colorwell via Preference Pane.

I have bounded the values of the wells to backGroundWell and lineWell in IB.

I have the appropriately named methods. I know my bindings are ok becuase if I just return [NSColor whiteColor] instead of the data
from NSUserDefaults, they're yellow when I open the pane. so that's ok.

I am pretty sure I'm getting a null from the defaults because the wells are black. I have no "blackColor" in my project. Already searched for that.

What am I doing wrong? I thought that NSUserDefaults was pretty simple...

Below are my getters and setters.

-(NSColor*)backGroundWell
{
   
    NSLog(@"called BGwell");

    NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
    NSData* data = [defaults objectForKey:@"BGCOLOR"];
    NSColor* newColor = [NSKeyedUnarchiver unarchiveObjectWithData:data];
    NSLog(@"retrieved Color for BG is %@", newColor);
    //NSLog(@"%@",[NSKeyedUnarchiver unarchiveObjectWithData:data]);
    return [NSKeyedUnarchiver unarchiveObjectWithData:data];
}
-(NSColor*)lineWell
{

    NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
    NSData* data = [defaults objectForKey:@"LINECOLOR"];
    return [NSKeyedUnarchiver unarchiveObjectWithData:data];
}

-(void)setBackGroundWell: (NSColor*)newColor
{
    NSLog(@"New Color is %@", newColor);
    NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
    NSColor* color = [backGroundWell color];
    NSData* colorData = [NSKeyedArchiver archivedDataWithRootObject:color];
    [defaults setObject:colorData forKey:@"BGCOLOR"];
    NSLog(@"changing background color");
}
-(void)setLineWell: (NSColor*)newColor
{
    NSLog(@"New Color is %@", newColor);
    NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
    NSData* colorData = [NSKeyedArchiver archivedDataWithRootObject:[lineWell color] ];
    [defaults setObject:colorData forKey:@"LINECOLOR"];
    NSLog(@"changing line color");
   
}

-------
Below is my +(void) initialize method

+(void) initialize
{
   
    NSMutableDictionary* defaultValues = [NSMutableDictionary dictionary];
   
    NSData* backgroundColorData = [NSKeyedArchiver archivedDataWithRootObject:[NSColor greenColor] ];
    NSData* lineColorData = [NSKeyedArchiver archivedDataWithRootObject:[NSColor whiteColor] ];
   
    [defaultValues setObject:backgroundColorData forKey:@"BGCOLOR"];
    [defaultValues setObject:lineColorData forKey:@"LINECOLOR"];
   
    [[NSUserDefaults standardUserDefaults] registerDefaults:defaultValues];
    NSLog(@"registered defaults %@", defaultValues);
   
}[/

SIZE]

EDIT:
I need to add something: I tried reading a NSString from the prefs and that worked just fine. So it's something to due with writing it as NSData...