Theme manager is a little web part made for Moden experience on SharePoint that allow site owners to update and personalize their site's theme with details. It allows you to edit theme and copy paste it from one site to another without needing deploying it on a tenant level.

When configuring the SharePoint site theme, you are limited in selection with only 2 options with limited set of colors (Theme primary and accent). The component allow you to set all existing colors of the SharePoint site, to match you company's color.

When configuring a custom theme you also need to use a tenant level feature that make your custom theme available to anyone in the tenant. With this tool you can set your custom theme on the site collection without tenant level action.

Theme manager

by ERUDITEGO