I have stopped the firestick from going to sleep through ADB so the screensaver will continue to roll through my custom images without interruption. And I have set the slideshow to "slow" through the UI, but would like to have each image stay on the screen even longer. Right now the images display for 7-8 seconds before changing to the next, I would like to increase that to 20-30 seconds. Can I do this through the ADB? What command would I use?