In February, Microsoft announced that an HDR calibration app was on the way to help Windows 11 users optimize color accuracy and consistency for gaming on their HDR displays. The app, spotted by means of Thurrotthas now arrived and is available for download.

The app includes three test patterns, which you can use to test for the darkest and brightest visible details you can see on your screen, as well as maximum brightness. You can adjust how vividly colors appear for both HDR and SDR content.

To use the app, you need a PC with Windows 11 and an HDR-compatible display with HDR. In terms of GPU, you’ll need an AMD RX 400 series or higher, an AMD Ryzen processor with Radeon Graphics, an Intel 11th Gen CPU or higher with integrated graphics, an Intel DG1 or higher, or an Nvidia GTX 10xx or higher. Your display must be running WDDDM 2.7 display driver or higher. Check Windows Update to make sure you have the latest drivers.

From here, choose which test patterns to use and drag the slider to customize the look of your screen. Make sure to use the app in the same room and lighting where you normally use your screen. If you replace your monitor or move it to a different area, you may want to recalibrate.