You can increase contrast by selecting Ribblr's dark theme. You may also check the native settings on your device/browser, and enable an increased contrast mode. By default, Ribblr follows your system's theme preference. If your system is set to dark mode, dark mode will automatically apply on Ribblr, too. You can manually select your preferred theme by clicking 'Accessibility' on your personal menu. The community natively supports a dark theme too. You can go to your profile and click 'Preferences' and then 'Interface' to manually select your theme.