Welcome, and thank you for posting here in the Roku Community, @KingBob.
Rest assured that we will find you the best resolution regarding your concern.
As we checked, you have multiple devices on your Roku account. May we know on which specific device you are having this issue with? In addition, here's our Support articles that might help you with your concerns:
How to change the standby LED settings on your Roku device
How to improve contrast using local dimming on your Roku TV system
Let us know how it goes, and we'll go from there. Hope this helps!
Thanks,
Carly
Carly Y.
Roku Community Moderator