Here is how to set opacity of a funnel chart in looker studio
- First click on the file name from the reports list to open it
- Then click on "Edit" button in the top toolbar
- Next click on "Manage pages" option in the page navigation toolbar
- Next click on the page name that you want to manage in the right sidebar
- Next click on the "Show properties" button above the funnel chart
- Then click on "Opacity" dropdown in the Background and border section of the right sidebar
- Finally select "an option from the Opacity dropdown menu









