how can i add custom icons to azure managed grafana

Hi @Raymon van Tunen
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.
We cannot directly upload icons to the Azure Grafana, alternately you can host icons externally and reference with dashboards, please follow below suggestions:

Azure Blob:  Store your icons in a public or private container with appropriate access policies.

Web Server: Use any accessible web server or a cloud storage service with public URL access.

Steps to Use External Hosting:

1. Upload Icons to Azure Blob Storage:
   -->Create a storage account and a container. -->Upload your custom icons to the container
   . -->Set the access level of the container to either public (if you want anyone to access the icons) or private (and use shared access signatures to control access).
2. Generate URLs for Your Icons:
   -->Get the URLs of the icons from Azure Blob Storage or your web server
   -->For Azure Blob Storage, the URL would typically be: https://<your-storage-account>.blob.core.windows.net/<your-container>/<your-icon>.png.

3.Reference Icons in Grafana:

-->Use these URLs in Grafana Image panels or Text panels with Markdown.

-->Example Markdown syntax to add an icon
 (https://your-storage-account.blob.core.windows.net/icons/my-icon.png)

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Hi Raymon van Tunen,
If you had a chance to see my comment to your question.
If it was helpful, please click "Upvote" on my post let us knowThank you...!