Deleting a theme removes it from your account’s Themes panel. The reports themselves aren’t touched — a report that referenced the deleted theme falls back to a default theme on its next render.
Open the report's Themes panel
In the report editor sidebar, open the Themes panel.
Delete the theme
Hover the theme row and click the Delete (trash) action.
Confirm
In the Delete theme dialog, confirm. Deleting a theme can’t be undone.
If the deleted theme was your account default, or was set as a Client theme, those references fall back to a default theme. Already-styled reports keep their own theme until you re-apply another one.
Deleting themes requires permission to manage shared assets.
