Office Settings & Configuration

Why Did the OneNote Side Panel Color and Tab Indicators Change?

Maira MehtabMaira Mehtab Oct 19, 2026 868 views

Question details

The user wants to know why the color of the side panel and the dots next to notebook tabs have unexpectedly changed in their application.

Why Did the OneNote Side Panel Color and Tab Indicators Change?
Product
Microsoft OneNote
Device & OS
not provided
Scenario
Navigating or organizing notebooks across different devices or after an application update.
Observed behavior
The side panel color is altered, and tab indicators (dots) display a new layout that differs from what the user previously experienced.
Before you start

Ensure you are logged into the same Microsoft account on all your devices and note down which specific OneNote application you are currently running.

Solution 1Recommended

Identify and Compare OneNote Versions

Checking your exact application version helps clarify if the layout change is due to using a different app edition on different devices.

Microsoft maintains different versions of the app, such as OneNote for Windows 10 and the standard OneNote desktop application. These versions have distinct interfaces.

1
Open Account Settings

Launch OneNote on your device and navigate to the 'File' tab in the top ribbon.

2
View Product Information

Click on 'Account' in the left-hand menu to view your exact product information, build number, and version details.

3
Compare Across Devices

Repeat this process on your other computers or devices where the layout looks different to determine if you are running mismatched versions.

Identify and Compare OneNote Versions
Version Differences: If you discover you are using OneNote for Windows 10 on one device and the Microsoft 365 OneNote app on another, the side panels and tabs will inherently look different.
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Frequently Asked Questions

Why does OneNote look entirely different on my home PC compared to my work computer?

Microsoft frequently rolls out new interface updates gradually to different user groups. Additionally, you might be running different applications, such as the pre-installed OneNote for Windows 10 versus the standard Microsoft 365 OneNote desktop app.

Can I revert the new layout to the old side panel style?

Generally, once an interface update is fully rolled out by Microsoft, it cannot be reverted. However, you can explore the 'View' tab in the ribbon to customize how tabs and navigation panes are currently displayed.

Are there functional changes alongside these new tab indicators?

The changes to the side panel colors and tab indicators are primarily cosmetic updates intended to modernize the interface. Your synced notes, structure, and core functionalities remain entirely unaffected.