Live verification (slice 5) found town-marker tooltips never appeared:
RetailTooltipPresenter.OnTooltipShow gates unconditionally on
AuthoredTooltipRootElementId == 0 -> return, with no fallback, but the
markers only set AuthoredTooltipText/Enabled (the DAT-authored P0x49
path). gmMapUI::AddMapNote's UIElement::SetTooltip call is retail's
RUNTIME m_TTText/SetTooltip mechanism, not the authored path — the
correct seam is UiButton.TooltipText (backing GetTooltipText()'s
override), which ResolveTooltipText consults before authored text.
The popup-skin locator (AuthoredTooltipRootElementId/LayoutDid) is
still required even on the runtime-text path with no built-in
fallback, so markers now hardcode the same shared popup skin
UiItemSlot already uses (0x10000395/0x21000041) — matching that
established precedent exactly.
Verified live: hovering a town marker (Aerlinthe Island) now renders
its tooltip correctly. 21/21 Map/House controller tests still pass.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>