I recently found this theme while I was on Twitter and I truly love it!
Synthwave x Fluoromachine theme
[https://marketplace.visualstudio.com/items?itemName=webrender.synthwave-x-fluoromachine]
is a combination between Synthwave '84 theme
[https://marketplace.visualstudio.com/items?itemName=RobbOwen.synthwave-vscode]
and Fluoromachine [https://colorsublime.github.io/themes/