In dark mode, scroll bars are still light colored

[ajjitn]

Bug
When toggling dark mode in the UI with 'Toggle Color Mode' the scroll bars on some cells like the Writes to column in the Sources pane shows up as a light scroll bar. This is visually jarring

Expected
The scroll bars should be dark/gray/black to match the other colors

Screenshots

Desktop (please complete the following information):

• OS: MacOS Tahoe
• Browser Tested and confirmed on Firefox, Chromium (Helium) and Chrome

Additional context
Add any other context about the problem here.