roku - Background color of roMessageDialog -

in roku brightscript, there way change background color of popup dialogs such romessagedialog dark blue color, instead of default gray?

it possible change text color through attributes dialogbodytext , dialogtitletext in roappmanager, don't see way change background color.

setting themetype generic-dark appears have effect, allows switching between light gray , dark gray.

you can use roimagecanvas or roscreen create pop-up of choice.