docs(plan): ground L3 readiness against landed Phase S surfaces

Both VST draw shells still draw flat off a local pre-L1 palette — L3
restyle confirmed live, not a born-in-kit no-op. Name the concrete gate
files, add the palette-reconcile point, enumerate the landed editor set.

PLAN.md

@@ -350,31 +350,57 @@ components, the pastel spectral keyboard strip, working hover/pressed/drag; the
 UID is unchanged (a visual refresh is not a compat event).
 **Depends on:** L1 (the kit) **AND — GATE — Phase S landing on dev.** The VST editor, embed
 strip, and keyboard strip live in Phase S, which is **not on dev yet** (it exists on the
-phase-s worktree). **L3 cannot be built on dev until Phase S's editor/embed surfaces
-(≈ S1 / S6 / S10) merge to dev. The Phase L team must NOT chase these files on dev — they
-are not there.** Until then L3 is a planned, blocked point; L1 and L2 are the live Phase L
-work.
+phase-s worktree). **L3 cannot be built on dev until Phase S's drawing shells
+(`src/vst/reasampler_editor.cpp` + `reasampler_embed.cpp`) merge to dev. The Phase L team
+must NOT chase these files on dev — they are not there.** Until then L3 is a planned,
+blocked point; L1 and L2 are the live Phase L work.
 
-> **Coordination contract with Phase S (load-bearing).** Phase S's S10–S13 build their
-> interaction UX with the **current** drawing and **adopt the L1 kit when it is available —
-> they are NOT gated on Phase L.** Whichever lands first (the L1 kit or the S10–S13 UX),
-> the kit is the **one source of drawing**: if S10–S13 reach dev before L1, they draw in
-> the current language and L3 restyles them; if L1 lands first, they are born in the kit.
-> Either way there is one kit and one look, and L3 is the point that completes the VST/embed
-> adoption and applies the settled B+spectral treatment.
+> **Coordination contract with Phase S (load-bearing).** Phase S's editor/embed UX
+> (S10–S13, S15–S18) build their interaction UX with the **current** drawing and **adopt the
+> L1 kit when it is available — they are NOT gated on Phase L.** Whichever lands first (the
+> L1 kit or the Phase S UX), the kit is the **one source of drawing**: if the Phase S
+> surfaces reach dev before L1, they draw in the current language and L3 restyles them; if
+> L1 lands first, they are born in the kit. **Reality check (product-designer, 2026-07-27,
+> read-only against the phase-s worktree): the Phase S surfaces did NOT adopt the kit —
+> `reasampler_editor.cpp` and `reasampler_embed.cpp` still draw flat `LICE_FillRect` blocks
+> + raw GDI `DrawTextA`, off a local pre-L1 forest-green palette (`kColBackground` etc.),
+> not `theme`/`draw_kit`.** So L3 lands as a **full restyle**, not a born-in-kit no-op — all
+> three plan points below are live and confirmed still-needed. Either way there is one kit
+> and one look, and L3 is the point that completes the VST/embed adoption and applies the
+> settled B+spectral treatment.
+>
+> **Landed-scope note (product-designer, 2026-07-27).** All Phase S drawing is centralized
+> in **exactly two shells** — `reasampler_editor.cpp` (the `IPlugView` editor) and
+> `reasampler_embed.cpp` (the S6 embed strip). Every other `src/vst/` UI file
+> (`editor_geometry`, `keyboard_strip`, `waveform_view`, `capture_browser`, `param_slider`,
+> `browser_scroll`, `embed_strip`) is a **pure geometry/hit-test module — zero LICE, zero
+> draw** (the house discipline held on the branch). So L3 touches two draw shells, but their
+> rendered component set is broader than the original plan named: the editor draws a
+> **capture-first browser** (search + tabs + thumbnails, S10), **channel toggles** (S7),
+> **waveform + start/loop markers** (S11), the **keyboard strip + zone bars** (S10/S10-Z),
+> and **ADSR / pitch sliders + mode toggles** (S12/S15/S16). Every one of these is on the
+> restyle surface — enumerated in the points below.
 
 - [ ] Route the VST editor's + embed strip's text through the kit's cached-font `text()`
-  (the kit's current face — §3.1, no font change); retire their raw GDI `DrawTextA` path.
-  (Gated — Phase S surfaces must be on dev.)
-- [ ] Restyle the editor + embed components through the kit (buttons, sliders/ADSR, list
-  rows, waveform, segmented controls) in the B (Neon Console) palette — **REAPER-grey
-  neutrals** (`bg/base` `#2b2b2b` / `bg/panel` `#333333` / `bg/cell` `#3a3a3a`) with the
-  **three pastel accents** (primary lime = live layer; secondary teal / tertiary purple =
-  categorical); add hover/pressed/drag states. (Gated.)
-- [ ] Apply **Direction C's pastel spectral treatment to the keyboard strip** (hue-mapped
-  zones as a pastel sweep anchored on the three accents, glow-on-active as a static drawn
-  state — never a pulse, per the speed constraint) as the signature surface; VST3 class UID
-  unchanged. (Gated.)
+  (the kit's current face — §3.1, no font change); retire their raw GDI `DrawTextA` path
+  (present in both shells today). (Gated — Phase S surfaces must be on dev.)
+- [ ] Retire the shells' **local pre-L1 palette** — the `kColBackground`/`kColCardBg`/
+  `kColThumb`/… forest-green-on-charcoal constants block in `reasampler_editor.cpp` (and the
+  mirrored constants in `reasampler_embed.cpp`) — and draw every surface through the L1
+  `theme` roles instead. **This is the coordination-contract reconcile: today there are two
+  palettes (the landed `theme` kit + this local constants block); L3 collapses them to the
+  one kit.** (Gated.)
+- [ ] Restyle the editor + embed components through the kit (browser search/tabs/thumbnails,
+  channel toggles, ADSR + pitch sliders, mode toggles, zone bars, list rows, waveform,
+  segmented controls) in the B (Neon Console) palette — **REAPER-grey neutrals** (`bg/base`
+  `#2b2b2b` / `bg/panel` `#333333` / `bg/cell` `#3a3a3a`) with the **three pastel accents**
+  (primary lime = live layer; secondary teal / tertiary purple = categorical); add
+  hover/pressed/drag states. (Gated.)
+- [ ] Apply **Direction C's pastel spectral treatment to the keyboard strip + zone bars**
+  (hue-mapped zones as a pastel sweep anchored on the three accents, active zone lifting to
+  `accent/primary` + a static glow — never a pulse, per the speed constraint) as the
+  signature surface; also carry the waveform + loop/start markers onto the kit's
+  `drawWaveform` + `warn`/accent marker roles; VST3 class UID unchanged. (Gated.)
 
 ## Phase L — sequencing
 ```
@@ -416,6 +442,19 @@ feature work runs in parallel, ungated by Phase L.
   cursors chosen for drop-result cues (Reorder→IDC_SIZEALL, Move→IDC_HAND, Copy→IDC_UPARROW,
   Replace→IDC_SIZEWE); existing pool-privilege guard reused as-is for Alt-replace. Gap navigation
   in the grid = skip gaps (arrow keys skip empty slots). See `COMPLETED.md` §L7.
+- **L3 restyle surface (L3)** — **PRE-CONFIRMED read-only against the phase-s worktree
+  (product-designer, 2026-07-27); re-confirm against dev once Phase S merges.** (1) Both draw
+  shells (`reasampler_editor.cpp`, `reasampler_embed.cpp`) still draw flat — `LICE_FillRect` +
+  raw GDI `DrawTextA`, no `theme`/`draw_kit`/`LICE_CachedFont` include — so all three L3 points
+  are live (no born-in-kit no-op). (2) There is a **second palette** to reconcile: a local
+  `kCol*` forest-green-on-charcoal constants block in the editor shell, divergent from the
+  landed `theme` roles. (3) Draw is centralized in those two shells only; every other
+  `src/vst/` UI file is pure geometry (kit adoption is a shell-side change, no geometry
+  rework). (4) The phase-s branch carries an **older L1 kit** (its `action_bar` predates dev's
+  L4–L7 `theme` palette revisions) — after Phase S merges, L3 draws against dev's current
+  `theme`/`draw_kit`, so re-confirm the palette roles L3 consumes are dev's, not the branch's
+  stale copy. **One genuine open question for Daniel** (see the assessment) — otherwise the
+  settled DS-1/2/3 spec forces the rest.
 
 ---