How to customize left navigation using SPFx extension?

Question

I need to change the background color of the left navigation items in SharePoint online modern view. How can I achieve this using SPFx extension?

Answer 1

In the SharePoint modern page, if you want to change the background color of the left navigation, you need to develop modern script editor web part in the site collection, then add CSS codes in the modern script editor web part.

First, download a compiled version from here, then enable this app and add it to all sites.

Go to the site collection, add the modern script editor web part on the page, add CSS codes in the modern script editor web part.

Similar question: https://learn.microsoft.com/en-us/answers/questions/749648/how-to-change-the-background-color-of-the-hub-navi

Reference: https://sharepoint.handsontek.net/2023/03/15/use-script-editor-modern-sharepoint-sites/

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