Successfully replaced the Settings text button with a Phosphor gear icon. Changes made in server/templates/base.html (lines 1131-1136): - Changed from btn-secondary button to tab-style link to match other header elements - Added Phosphor gear icon using <i class="ph ph-gear"></i> - Added tooltip on hover showing 'Settings' via title attribute - Kept same htmx attributes for functionality (hx-get, hx-target, hx-swap) - Maintained data-testid for testing consistency The gear icon now matches the styling of the help button (?), using the same tab class and color (#8b949e). Verified functionality by: 1. Deploying to trckr.roboalch.com 2. Loading the page with chrome-devtools 3. Clicking the gear icon to confirm it opens the settings modal