You can enable an accessibility-enhanced version of Bridge in your User Profile to meet the WCAG 1.4.3 Contrast (Minimum): The visual presentation of text and images of text has a contrast ratio of at least 7:1, which exceeds the 4.5:1 recommendation. More complete information about Bridge Accessibility can be found in the Bridge Voluntary Accessibility Guidelines.
Open User Profile

Click on the Settings icon in the Global Navigation menu. Then click the Dark Mode toggle button.