Hello @ryanc1234 and @Narfix, yes we are considering having a Dark Mode on SonarQube, you can see it as being under consideration in our public roadmap here.
We already successfully released a dark theme for SonarCloud this summer, and we’d like to bring the same theme on SonarQube eventually.
As for your feedback on the brightness of the Light Mode, point taken! We are continuously iterating on our UI design based on feedback from our users, and contrast revision is something our UX designers are currently looking into.