WHat do you mean by "manage"? I can pick from ones that are there (defaults) but how to add new themes via the device?
Thanks for the post.
Can you please specify the issue you are experiencing?
For more information about how to change your theme on your Roku device, visit our Support page here: Change the theme pack
Please keep us posted what you find out.
Thanks,
Danny
Go to settings, theme, , restore default theme and it should take you to original roku theme. After, you can go back and set a different theme again. I’m assuming there is some sort of bug on the updates when they push “on demand now” ad that automatically changes background for a few days until it goes back to the defaulted one. This happened to me when they “on demand now” came up for Star Trek.