Red Dim

Matt Manning

About this app

Red Dim is a simple tool that turns your display into a red flashlight and gives you precise control over screen brightness.

Perfect for:
• Parents — check on sleeping children without waking them
• Astronomy — preserve your night vision with a red-filtered display
• Wildlife observation – Most animals aren't disturbed by red light.
• Military/tactical – Low visibility to others, maintains night adaptation.
• Camping – Navigate at night without blinding yourself or others.

How it works:
1. Open Red Dim and your screen is immediately covered with a red overlay
2. Drag the brightness slider up or down to adjust from 1% to 100%
3. Toggle the lock icon if necessary to prevent accidental changes
3. Tap the X button when you're done

That's it. No settings screens, no accounts, no ads, no tracking. Just a red screen and a brightness slider.

Features:
• Full-screen red overlay that dims your display
• Vertical brightness slider (1%–100%)
• Syncs with your device's system brightness
• Immersive full-screen mode (hides status and navigation bars)
• Lightweight and fast — opens instantly
• No permissions beyond brightness control
• No ads, no tracking, no data collection

What’s new

- Larger lock icon — Increased lock icon size from 56dp to 80dp for better visibility
- Extracted local lock icons — Lock and LockOpen icons moved to local LockIcons.kt
- Slimmer APK — Removed material-icons-extended dependency, reducing build size by avoiding the 2000+ icon library when only 2 icons are needed