In the new (beta) IntelliJ UI selected file is not highlighted in Project sidebar

[mmassenzio]

Describe the bug
As the title says: when enabling the "beta" UI in IntelliJ, the selected file on the project sidebar does not show as highlighted
(and, to be fair, even with the "traditional" UI, the contrast of the background could be better)

To Reproduce
Steps to reproduce the behavior:

1. Apply Atom Dark One theme
2. Choose any of the files in the project
3. The file on the sidebar is not highlighted

Screenshots

Application:
IntelliJ

[EpicWang]

Me too, man. How do I fix this?

[zsl9772]

Has this problem been solved, and how?