Monitor Brightness for Windows

Monitor brightness and color warmth that change automatically at sunrise and sunset, and come back to your values after the PC wakes up from sleep. Set day and night once: the plugin follows the sun in your city (or times you choose), changes slowly, and the Auto key shows the next change, such as 18:42 -> 30%. Warmer colors after sunset work like a night light that follows the sun.

Features

Changes the monitor's own brightness and contrast over DDC/CI, as its buttons do

Sunrise and sunset for 220+ cities or your own coordinates, worked out on your PC, or fixed times, with a slow fade

A change by hand pauses the schedule until its next change (MANUAL until 18:42). Auto key: back now

After sleep, or when a monitor is plugged in again, each monitor gets its last value back. Your monitor buttons still work

One monitor or all, each in its own range. Set, step or switch values. Brightness or contrast

Stream Deck + dial: turn for brightness, push for auto or manual

Warmth 6500K to 2700K, Scenes, monitor names

Four looks: Classic, Ring, Solid, Sky. English and Japanese

Your colors come back

When you switch warmth off, stop Auto or close Stream Deck. If the plugin stops unexpectedly, a small helper puts them back, and the next start checks again.

Privacy

Works on your PC only. Nothing is sent anywhere.

Requirements

Windows 11 (Windows 10 not tested), Stream Deck 6.9 or later

External monitors with DDC/CI turned on. Laptop screens are not supported

Windows limits how warm a display can get, and may refuse color changes while HDR is on

Idea or bug? Use the Support link. Every message is read.

（1.0.0） First release. Monitor brightness and color warmth change automatically at sunrise and sunset (220+ cities or your own coordinates, worked out on your PC) or at set times, with a slow change, and the Auto key shows the next change. A change by hand holds the schedule until its next change. After the PC wakes up, or when a monitor is plugged in again, each monitor gets its value back. Brightness keys for one monitor or all (each in its own range), contrast, a Stream Deck + dial, Warmth that gives the original colors back when you switch it off or close Stream Deck, Scenes, monitor names and Identify. Four looks. English and Japanese.