Add nine component tokens declared on the outermost SW scope. Each
defaults to the token or literal it replaces, so the default look and
header theme inheritance are unchanged; setting one changes its
component alone.
- Viewer Header menus (logo menu, header dropdowns, More):
--hm-sw-viewer-header-menu-background / -border-color / -shadow /
-item-hover-background (default: --hm-sw-header-more-*)
- SWHeader K guide: --hm-sw-header-k-guide-border-color
(default var(--hm-sw-property-border)) / -background (#0e3c2e)
- Popup value color: --hm-sw-popup-value-color
(default var(--hm-sw-header-input-color)); the property bar keeps
the header token
- Footer command history scrollbar:
--hm-sw-footer-command-scrollbar-thumb (#574b30) / -track (transparent)
Footer focus ring, side shadow, shared text color and dividers stay
shared. Docs (DESIGN_RULES, AI_USAGE, VIEWER, header design spec) and
theme-inheritance section 1d updated.