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Instantly turn your screen black or test red, green, blue, white modes for stuck pixels or display burn-in.

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🖥️ Use the Black Screen Test to Spot Display Issues Instantly!

With the Black Screen Extension, you can quickly test your screen in full black mode with just one click. It's perfect for identifying issues like dead pixels, stuck pixels, or backlight bleeding on your mobile or desktop display.

This tool includes five color modes for a complete screen test:

⚫ Black Screen

⚪ White Screen

🔴 Red Screen

🟢 Green Screen

🔵 Blue Screen

Whether you're checking a new device or troubleshooting an old one, this tool helps you spot screen defects easily!

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