MagicBlack

A magic plugin for the Decky Loader that overlays the screen with black color, emulating the screen being turned off on the Steam Deck OLED.

💾 Installation

Using the Decky store

1. Install Decky Loader
2. Switch to steam game mode
3. Press <img src="./docs/images/dark/qam.svg#gh-light-mode-only" height=16><img src="./docs/images/light/qam.svg#gh-dark-mode-only" height=16>
4. Go to the tab <img src="./docs/images/dark/plug.svg#gh-light-mode-only" height=16><img src="./docs/images/light/plug.svg#gh-dark-mode-only" height=16>
5. In the upper right corner, click <img src="./docs/images/dark/store.svg#gh-light-mode-only" height=16><img src="./docs/images/light/store.svg#gh-dark-mode-only" height=16>
6. Find MagicBlack in the plugin list or search for it
7. Press the Install button

🎨 Features

• Overlay a black background
• Adjust the opacity of the black background
• Enable or disable the touchscreen
• Mute or unmute the microphone and speakers
• Close the overlay on press or wake-up

🚀 Getting started

Now that you have MagicBlack, press <img src="./docs/images/dark/qam.svg#gh-light-mode-only" height=16><img src="./docs/images/light/qam.svg#gh-dark-mode-only" height=16> and go to <img src="./docs/images/dark/plug.svg#gh-light-mode-only" height=16><img src="./docs/images/light/plug.svg#gh-dark-mode-only" height=16> and select <img src="./docs/images/dark/mb.svg#gh-light-mode-only" height=16><img src="./docs/images/light/mb.svg#gh-dark-mode-only" height=16> MagicBlack in the installed plugins list.

Turning Off the Screen

• To turn off the OLED screen, enable the Black Background switch — a fully black overlay will be applied to the display. On an OLED panel, each pixel emits its own light, and black means the pixel is not emitting anything, so the screen effectively turns off.
• To bring the image back, press <img src="./docs/images/dark/qam.svg#gh-light-mode-only" height=16><img src="./docs/images/light/qam.svg#gh-dark-mode-only" height=16> to return to the plugin and disable the Black Background switch again.

Reducing Flicker

• To reduce OLED flicker, set the screen brightness to 100%. Then enable the black background and adjust its transparency using the Opacity slider to find a comfortable level.