Use the beta complaints chart shown in the visual. A team is preparing to launch an online study planner. Text exhibit: A grouped bar chart titled 'Beta Complaints by User Group.' X-axis groups: Screen reader users, Keyboard-only users, Touchscreen users, New users. Y-axis complaint count. Bars for Navigation problems: 18, 12, 4, 7. Bars for Color confusion: 5, 4, 9, 6. Include legend and note: 40 testers total. Which revision should be prioritized to reduce exclusion without undermining the planner's value?