Changing opacity lightens shape but not making it transparent
Hi,
I'm working on tracing a map tha I downloaded as a .pdf off the internet. My plan was to trace and simplify it then add semi transparent overlays to highlight information. However changing the opacity of both individual assets, or layers results in a lighter image, but not a more transparent one. I created a seperate (empty) file just to test that the issue was local to this this file only (which it is). So I know this specific file is somehow not letting a change in opacity also change the tranparency. Thanks in advance, pictures below.


