Dim the highlighting of duplicate words

[NicholasTuttle]

When working with Jupyter Notebooks in VS Code, if find it hard to distinguish between the selected word and the (automatically) highlighted duplications of that word. I experience this trouble in all Andromeda color themes, except Andromeda Colorizor. I would suggest dimming the highlighting of duplications.

I have included an image. In this image I selected "item" in item5. It is rather difficult to tell that though.