- psn.lowLongOfPSN = [[currentApp objectForKey:@"NSApplicationProcessSerialNumberLow"] longValue];
- psn.highLongOfPSN = [[currentApp objectForKey:@"NSApplicationProcessSerialNumberHigh"] longValue];
- [self->configsController applicationSwitchedTo: [currentApp objectForKey:@"NSApplicationName"] withPsn: psn];
+ psn.lowLongOfPSN = [currentApp[@"NSApplicationProcessSerialNumberLow"] longValue];
+ psn.highLongOfPSN = [currentApp[@"NSApplicationProcessSerialNumberHigh"] longValue];
+ [self->configsController applicationSwitchedTo: currentApp[@"NSApplicationName"] withPsn: psn];