`CreateFrame(): Couldn't find inherited node "DialogBorderOpaqueTemplate"` is where
OpenMapClassic stopped — on its first file, inside Ace3, before a line of its own code ran.
It is not that addon's problem: `BackdropTemplate` is named **unguarded** by Ace3 itself
(`AceGUIContainer-Frame.lua:179` and `:206`, `AceGUIContainer-DropDownGroup.lua:128`), so
every Ace3 addon on this install hits it.
`assets/ui` does not grow, so this file carries its reason on that wall's own list: there is
no stock 1.12 file to migrate from, because 1.12 has neither template. They are the same kind
of surface as `script/compat/`'s verbs and live in XML only because `inherits=` is resolved by
the loader and cannot be answered from Lua.
**`BackdropTemplate` is correctly empty.** 9.0 moved the backdrop off the C side and invented
`BackdropTemplateMixin` to put it back; 1.12 still has `SetBackdrop`/`GetBackdrop`/
`SetBackdropColor`/`SetBackdropBorderColor` as real frame methods, so a frame inheriting the
template already answers all four. The mixin table exists for the
`BackdropTemplateMixin and "BackdropTemplate" or nil` idiom and for `Mixin()`, its rows
forwarding to the stock methods. **No getter rows**: a forwarding `GetBackdropColor` would
call itself once `Mixin()` had written it onto the frame, and the stock one already answers.
The dialog border is one `<Backdrop>` over this client's own dialog art — the shape every
stock 1.12 dialog draws, and the same block `GameMenuFrame.xml` uses — rather than a
transcription of Era's nine `SharedUIPanelTemplates.xml` textures. The opaque variant differs
only in background alpha, which is the one thing the two names disagree about. `enableMouse`
stays off: it is a decoration over a frame that handles its own input, and a border that ate
clicks would make an Ace options window unusable.
Movement: openmap `AceConfigDialog:573` → `:586`, now wanting `SetNormalFontObject`.
Full chain green.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn
gromandClaude Opus 5
164eb7e624