Change Colour of Font in defer message box

I’m just starting to investigate the user of the PS AppDeploy Toolkit.

I’ve created a defer box, with a message that pops-up if certain applications are open, which is working well.

However my communications team want some of the messages is this window to be displayed in red, rather than black.

Is there an easy way to change the font colour in this message box?

Show-WelcomePrompt’s labels would need to be modified.