# Screen Dimmer

Black out a monitor on Windows to reduce distractions. Useful for multi-monitor setups when you want one screen fully dark while keeping another active.

## Requirements

- Windows 10 or later
- No other installs needed — just run `ScreenDimmer.exe`

## Quick start

1. Unzip the folder anywhere you like.
2. Double-click **`ScreenDimmer.exe`**.
3. Use the control window to dim the selected monitor, switch targets, or undim.

## Controls

| Action | How |
|--------|-----|
| Dim selected monitor | Click **Dim Selected Monitor** |
| Switch which monitor is targeted | Click **Toggle Monitor** (or use the hotkey — see below) |
| Remove the black overlay | Click **Undim / Close Black Screen**, press **Escape** while the overlay is focused, or use the hotkey again |
| Change hotkey | Adjust Ctrl / Shift / Alt and the key, then click **Save Hotkey** |
| Quit | Click **Exit App** or close the control window |

## Hotkey

Default: **Ctrl+Shift+D** toggles dim on/off for the currently selected monitor.

If a `screen_dimmer_config.json` file sits next to the `.exe`, the app loads your saved hotkey from there. The file is created or updated when you click **Save Hotkey**.

## Notes

- The black overlay is a borderless window on top of the chosen monitor. Press **Escape** to dismiss it quickly.
- With multiple monitors, **Toggle Monitor** cycles which display will be dimmed.
- Designed for Windows only.
