My Category extension is not working properly
===

I have added a category extension to my NSString class.   The method basically formats the string a certain way.  I have:

    - (NSString *)formatStringAsColor {
        NSString *formattedString = [NSString stringWithFormat:(@"%@ color", self)];
        return aFormattedString;
    }

Then I try calling this method elsewhere in my app but it says it cannot be found.

I try something like:
`NSString *string = [myOtherString formatStringAsColor];`

Any ideas?