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Add customizable dark mode to Microsoft OneNote Online Dark Mode for Microsoft OneNote Online Reduce eye strain with a customizable dark mode for OneNote Online. Works with OneNote on SharePoint, Office.com, and Microsoft 365. Features: - One-click toggle from the toolbar popup - Three distinct dark themes: - Soft — Warm sepia tint for comfortable nighttime reading - Balanced — Clean neutral dark for everyday use - Deep — High contrast AMOLED-style for maximum darkness - Images and media preserve their original colors - Settings sync across your Chrome browsers - Lightweight — no background processes, no data collection Supported domains: - OneNote on SharePoint (personal and corporate) - onenote.com - office.com - microsoft365.com Privacy: This extension stores your theme preference locally using Chrome's sync storage. It collects no personal data, makes no network requests, and contains no analytics or tracking.
Feb 14, 2026
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