f9ce37b6d0
**Issue**: Only info and shortcuts buttons were showing orange color when scrolled to bottom of page. Download PDF, Print Friendly, and Color Theme buttons were missing this visual feedback. **Fix**: 1. Added all buttons to at-bottom class logic in utils._hs: - #download-button - #print-friendly-button - .color-theme-switcher 2. Added CSS .at-bottom styles for missing buttons: - .download-btn.at-bottom - .print-friendly-btn.at-bottom - .color-theme-switcher.at-bottom **Result**: All fixed buttons now show unified orange (#f39c12) background when page is scrolled to bottom (within 50px), providing consistent visual feedback across all controls. Files changed: - static/hyperscript/utils._hs: Added 3 buttons to scroll handler - static/css/main.css: Added 2 .at-bottom styles - static/css/color-theme.css: Added 1 .at-bottom style