Diagnoses and fixes the desktop nav hover color issue (cache vs. code root cause confirmed live). Wires the existing dd_hero_bg_image/overlay_color/overlay_opacity fields as an actual hero section background (previously unused/misapplied), with a light Minimal-Light-appropriate overlay treatment distinct from Khana Khazana's dark styling. Improves hero H1 typography (scale, line-height, weight, accent-span treatment).
Nav hover: confirmed live (not just from static code) — fetched demo.dishdash.rw with cache-busting, verified the deployed CSS matches source exactly, and found the actual cause: the tenant's dish_dash_accent_color option is stored as #ffffff. No code change — see RELEASE.md v3.18.45 and CLAUDE.md's Next task for the wp-admin follow-up.
See RELEASE.md v3.18.45 for full detail, and investigation-ml-nav-hover-bg.md for the pre-work investigation.