Created Unassigned: Crash after switching to modern style [18]

Right after start, I've changed FPS to 1 by using arrows, then switched to "Modern style", hit restart button and I couldn't run the app again with error:

Title: Unhandled Exception
Message: Value of '1' is not valid for 'Value'. 'Value' should be between 'Minimum' and 'Maximum'.
Parameter name: Value
Source: System.Windows.Forms
TargetSite: Void set_Value(System.Decimal)
StackTrace: at System.Windows.Forms.NumericUpDown.set_Value(Decimal value)
at ScreenToGif.Modern..ctor()
at ScreenToGif.Program.Main(String[] args)
Date/Time: 11/11/2014 12:15:47 AM
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I've found config file, browse through it and switched maxFps to Maximum and got new modern style working. Seems like arrows are not limited to 5?

Windows 7