Feature Request: Turn off display to save power

[MarkTatterTierney]

Hi, I'm not sure if this is possible but currently on the home screen of the Grow Hat mini the Y button is redundant.

Would it be practical to utilize this button to completely deactivate the screen in a toggle fashion when on the home screen?

I'm thinking this would be useful as a power saver for anyone wanting to power their raspberry pi via solar power/battery pack.

Thanks