XF 1.4 Manually trigger board upgrade page for styling purposes?

[Optic]

Just wondering if there was a way to trigger the board upgrade message page without actually upgrading?

I would like to customise the board_currently_being_upgraded phrase by adding an image via HTML and just wanted to see how it looks.

Thanks in advance for your support.

 

[Mike]

You can edit the version ID in the XenForo_Application class.