Apply theme with PowerShell based on the theme we generated.
Apply theme
Moving into SharePoint Online and choose the new theme in the site setting “Change the look”.
The colors are applied across the site.
Setting the header
Uploading pictures as logo and thumbnail and setting the header according to the style guide.
Fotter
Setting the footer is also important on a SharePoint site.
This is simple branding in SharePoint Online Modern sites. To take it one step further you can also create Site Designs that will allow users to add sites to SharePoint fully branded with a set of default features and content available from the get go.