FR: Option to change the Banner/Icon image during the workflow

[dpertschi]

It would be neat to have the ability to change out the Banner/Icon image on some type of trigger or interval. So instead of having one static Banner/Icon image for the duration of the JSM workflow, we could trigger it to swap out as desired.

Maybe each Enrollment Action could support an additional key/string to define the new banner or icon image to pop in place.
Or add a new Enrollment Action option that can simply change the graphic when called. Ideally we retain the existing option to set the initial Banner/Icon but then have the ability to change it as desired during the workflow.

I can see a couple of use cases for this

1. displaying various company info graphics to the user while they wait
2. displaying info/graphic about the current item being installed
3. we're a parent company with multiple brands, I'd cycle through various brand graphics