For value 16, the function is displaying the System.Windows.Forms.MessageBoxIcon.Exclamation icon instead of the System.Windows.Forms.MessageBoxIcon.Error icon. I’ll see that this fixed.
Ah, and here is a noob hack for ya… so ya don’t have to wait for the implementation
import Rhino
import System
Rhino.UI.Dialogs.ShowMessageBox(“Why can’t I get a critical stop icon?”,“Python training”,0,System.Windows.Forms.MessageBoxIcon.Error)