1. Go to your report, click on the report menu icon () and select configure.
2. Click on edit* above the report's color theme.
3. Click on the color theme you want to delete and choose select. If you want to select all the color themes, click on the select all icon ().
4. Click on the delete icon (). The selected color themes will be deleted immediately.

* This feature is only available in the PRO and PRO+ plans. Check out our plans.