At first, thank you very much for this useful tool!

One reproducible bug I found is an error message I get - every time I resize a column in the Projects tab.
I already commented this at the commit, but since I'm not sure if that's the right place, I'm adding it here as an issue, too:

"System.ArgumentNullException: Der Wert darf nicht NULL sein.
Parametername: collection
bei System.Collections.Generic.List1..ctor(IEnumerable1 collection)
bei UnityLauncher.Form1.gridRecent_ColumnWidthChanged(Object sender, DataGridViewColumnEventArgs e)
bei System.Windows.Forms.DataGridView.OnColumnWidthChanged(DataGridViewColumnEventArgs e)
bei System.Windows.Forms.DataGridView.OnBandThicknessChanged(DataGridViewBand dataGridViewBand)
bei System.Windows.Forms.DataGridViewBand.set_ThicknessInternal(Int32 value)
bei System.Windows.Forms.DataGridViewBand.set_Thickness(Int32 value)
bei System.Windows.Forms.DataGridView.EndColumnResize(MouseEventArgs e)
bei System.Windows.Forms.DataGridView.OnMouseUp(MouseEventArgs e)
bei System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
bei System.Windows.Forms.Control.WndProc(Message& m)
bei System.Windows.Forms.DataGridView.WndProc(Message& m)
bei System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
bei System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
bei System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Hope this helps. I'm using the "4 Months To Go" Edition 20, whatever this means.