0365 group branding - logo and customized themes

Dear all,

I had the same issue with the access denied on the Theme resource and found the reason for the Group Sites (and probably all the modern sites).

The access denied is due to the feature disable by default "enable customize scripts", you have the details for the case (in his case on the Content Type), working perfectly in the Theme case:

• https://social.technet.microsoft.com/Forums/office/en-US/9e099ba6-e27c-45d4-9ec0-8af184e71061/access-denied-unable-to-upload-a-custom-template-for-a-custom-content-type?forum=SP2016

The script command to run is detailed here:

• https://www.c-sharpcorner.com/article/enable-custom-script-based-missing-features-in-sharepoint-online/

Fab