The unconventional color scheme brought on by this theme is jarring; chiaroscuro is more than just having high contrast.

This theme is missing different shades of the colors used and there's chromatic disruption which is typically not part of chiaroscuro.

The white the URL bar, application menu, and the drop-down menu that list all tabs, should have been a bright shade of neighboring colors for better overall art/theme composition. Transparency could also have been used to enhance the sense of harmony with this high contrast theme.