Reconstruct core curs_color (pairs + cell colour) -- 50%, honest gaps

Extend the cell attribute word with colour-pair bits and add a pair registry.

- window.rs: color_pair(n)=n<<8, pair_number(attr), A_COLOR mask, Window::color_set
  (replaces the active colour), and attron now replaces colour bits (ncurses
  semantics) while OR-ing the rest.
- color.rs: Palette with init_pair/pair_content (pair 0 = default 7,0).
- terminfo: has_colors (colors>0) and can_change_color (ccc), derived from the
  court-matched tigetnum/tigetflag.

Courts: NCURSES.WINDOW.ATTR gains colour scripts (color_set + attron(COLOR_PAIR)
read back via winch colour bits); NCURSES.COLOR.PAIR compares init_pair/
pair_content + COLOR_PAIR/PAIR_NUMBER to ncurses. Both admitted_match.

Parity (compass caught and fixed a stale start_color counterpart vs new
classification): curs_color 20/40 (50%) -- core reconstructed (partial), the
colour config (start_color/use_default_colors/...) n/a, and the rgb palette
(init_color/color_content), extended 32-bit colour, and dynamic pair allocation
left as honest gaps (not faked). Overall 284/481 (59.0%): 183 reconstructed
(32 full, 126 partial, 21 scaffold, 4 divergent) + 101 classified (28 deferred,
73 n/a). 52 tests; gate green.

Author: claude

README.md

@@ -36,20 +36,24 @@ clang C inventory joined with the `syn`-extracted Rust inventory and a curated,
 validated counterpart map). `cargo xtask check` is the freshness gate -- it
 re-renders in memory and fails if a doc drifted, a counterpart points at a
 missing Rust symbol, or a cited court has no receipt. CI and the optional
-`.githooks/pre-commit` run it on every change. Measured coverage today: **268 /
-481 functions (55.7%)** resolved. Read that honestly as two parts:
+`.githooks/pre-commit` run it on every change. Measured coverage today: **284 /
+481 functions (59.0%)** resolved. Read that honestly as two parts:
 
-- **175 reconstructed** (32 full, 116 partial, 23 scaffold, 4 divergent) -- actual
-  Rust that emits/derives bytes or reconstructs window state/geometry/attributes,
-  court-backed.
-- **93 classified non-output** (28 deferred = proven to emit nothing, 65 n/a = no
+- **183 reconstructed** (32 full, 126 partial, 21 scaffold, 4 divergent) -- actual
+  Rust that emits/derives bytes or reconstructs window state/geometry/attributes/
+  colour, court-backed.
+- **101 classified non-output** (28 deferred = proven to emit nothing, 73 n/a = no
   terminal-output contract: pure queries, tty/termios state, library config,
   printer, window-free, or global `cur_term` management).
 
-So ~36% of the API is *reconstructed* and the rest of the "resolved" total is
+So ~38% of the API is *reconstructed* and the rest of the "resolved" total is
 honest accounting of functions a byte-output reconstruction has nothing to emit
-for. **Nineteen groups are fully resolved (100%)** -- the ones with real
-reconstruction:
+for. **Nineteen groups are fully resolved (100%)**; **Color** (`curs_color`) is
+half reconstructed (the core: `init_pair`/`pair_content`, `color_set`,
+`COLOR_PAIR`/`PAIR_NUMBER`, `has_colors`/`can_change_color`, and colour pairs on
+the cell grid via `winch`) -- the rgb palette (`init_color`/`color_content`),
+extended 32-bit colour, and dynamic pair allocation remain honest gaps. The
+fully-resolved groups:
 
 - **Terminfo & termcap** (`curs_terminfo`/termcap, 33/33) -- the substrate: the
   runtime `tigetflag`/`tigetnum`/`tigetstr` (lookup), `tparm` (parameterized

docs-src/models/parity.model.json

@@ -495,6 +495,38 @@
     "wgetparent": {
       "status": "n_a",
       "note": "Returns the parent window pointer; a pointer query with no terminal-output contract."
+    },
+    "start_color": {
+      "status": "n_a",
+      "note": "Initializes the colour subsystem; no immediate terminal output."
+    },
+    "start_color_sp": {
+      "status": "n_a",
+      "note": "Initializes the colour subsystem; no immediate terminal output."
+    },
+    "use_default_colors": {
+      "status": "n_a",
+      "note": "Configures default (-1) colours; library state with no immediate terminal output."
+    },
+    "use_default_colors_sp": {
+      "status": "n_a",
+      "note": "Configures default (-1) colours; library state with no immediate terminal output."
+    },
+    "assume_default_colors": {
+      "status": "n_a",
+      "note": "Configures default (-1) colours; library state with no immediate terminal output."
+    },
+    "assume_default_colors_sp": {
+      "status": "n_a",
+      "note": "Configures default (-1) colours; library state with no immediate terminal output."
+    },
+    "reset_color_pairs": {
+      "status": "n_a",
+      "note": "Resets the colour-pair table; library state with no terminal output."
+    },
+    "reset_color_pairs_sp": {
+      "status": "n_a",
+      "note": "Resets the colour-pair table; library state with no terminal output."
     }
   },
   "groups": [
@@ -2478,22 +2510,20 @@
       "note": "Same ed bytes; no WINDOW model."
     },
     "color_set": {
-      "rust": "color::sgr_fg",
+      "rust": "window::Window::color_set",
       "status": "partial",
       "courts": [
-        "NCURSES.CAP.SETAF.2",
-        "NCURSES.CAP.SETAB.4"
+        "NCURSES.WINDOW.ATTR"
       ],
-      "note": "fg/bg byte producers are pinned to setaf/setab; pair allocation state is not modeled."
+      "note": "Sets the active colour pair on the cell grid; matched to ncurses via winch colour bits."
     },
     "wcolor_set": {
-      "rust": "color::sgr_fg",
+      "rust": "window::Window::color_set",
       "status": "partial",
       "courts": [
-        "NCURSES.CAP.SETAF.2",
-        "NCURSES.CAP.SETAB.4"
+        "NCURSES.WINDOW.ATTR"
       ],
-      "note": "Same setaf/setab bytes; no WINDOW model."
+      "note": "Sets the active colour pair on the cell grid; matched to ncurses via winch colour bits."
     },
     "initscr": {
       "rust": "term::INIT_PROLOGUE",
@@ -2511,15 +2541,13 @@
       ],
       "note": "Teardown epilogue constant; same divergence as initscr against the in-repo oracle."
     },
-    "start_color": {
-      "rust": "color::sgr_fg",
-      "status": "scaffold",
-      "note": "No color-pair allocation table; only the per-color SGR byte producers exist."
-    },
     "init_pair": {
-      "rust": "color::sgr_fg",
-      "status": "scaffold",
-      "note": "No pair table; the fg/bg SGR bytes a pair would activate are produced directly."
+      "rust": "color::Palette::init_pair",
+      "status": "partial",
+      "courts": [
+        "NCURSES.COLOR.PAIR"
+      ],
+      "note": "Registers a colour pair; pair_content matched to ncurses."
     },
     "attron": {
       "rust": "window::Window::attron",
@@ -3649,6 +3677,82 @@
       "status": "scaffold",
       "courts": [],
       "note": "Emits the terminfo set_attributes byte sequence for an attribute; a byte stand-in, not separately courted."
+    },
+    "COLOR_PAIR": {
+      "rust": "window::color_pair",
+      "status": "partial",
+      "courts": [
+        "NCURSES.COLOR.PAIR"
+      ],
+      "note": "COLOR_PAIR(n) = n<<8; matched to ncurses."
+    },
+    "PAIR_NUMBER": {
+      "rust": "window::pair_number",
+      "status": "partial",
+      "courts": [
+        "NCURSES.COLOR.PAIR"
+      ],
+      "note": "PAIR_NUMBER(attr) = (attr & A_COLOR) >> 8; matched to ncurses."
+    },
+    "init_pair_sp": {
+      "rust": "color::Palette::init_pair",
+      "status": "partial",
+      "courts": [
+        "NCURSES.COLOR.PAIR"
+      ],
+      "note": "Registers a colour pair; pair_content matched to ncurses."
+    },
+    "pair_content": {
+      "rust": "color::Palette::pair_content",
+      "status": "partial",
+      "courts": [
+        "NCURSES.COLOR.PAIR"
+      ],
+      "note": "Returns a pair's (fg,bg); matched to ncurses (incl. default pair 0 = 7,0)."
+    },
+    "pair_content_sp": {
+      "rust": "color::Palette::pair_content",
+      "status": "partial",
+      "courts": [
+        "NCURSES.COLOR.PAIR"
+      ],
+      "note": "Returns a pair's (fg,bg); matched to ncurses (incl. default pair 0 = 7,0)."
+    },
+    "has_colors": {
+      "rust": "terminfo::Terminfo::has_colors",
+      "status": "partial",
+      "courts": [
+        "NCURSES.TERMINFO.LOOKUP",
+        "NCURSES.TERMINFO.ECOLOGY"
+      ],
+      "note": "colors>0, derived from terminfo (tigetnum colors, court-matched)."
+    },
+    "has_colors_sp": {
+      "rust": "terminfo::Terminfo::has_colors",
+      "status": "partial",
+      "courts": [
+        "NCURSES.TERMINFO.LOOKUP",
+        "NCURSES.TERMINFO.ECOLOGY"
+      ],
+      "note": "colors>0, derived from terminfo (tigetnum colors, court-matched)."
+    },
+    "can_change_color": {
+      "rust": "terminfo::Terminfo::can_change_color",
+      "status": "partial",
+      "courts": [
+        "NCURSES.TERMINFO.LOOKUP",
+        "NCURSES.TERMINFO.ECOLOGY"
+      ],
+      "note": "the ccc capability, derived from terminfo (tigetflag, court-matched)."
+    },
+    "can_change_color_sp": {
+      "rust": "terminfo::Terminfo::can_change_color",
+      "status": "partial",
+      "courts": [
+        "NCURSES.TERMINFO.LOOKUP",
+        "NCURSES.TERMINFO.ECOLOGY"
+      ],
+      "note": "the ccc capability, derived from terminfo (tigetflag, court-matched)."
     }
   }
 }

docs/generated/claim-index.md

@@ -23,21 +23,20 @@ join, and `cargo xtask check` fails if any cited receipt is missing.
 | `NCURSES.CAP.EL` | admitted_match | `clrtoeol`, `wclrtoeol` |
 | `NCURSES.CAP.FLASH` | admitted_match | `flash`, `flash_sp` |
 | `NCURSES.CAP.HOME` | admitted_match | `mvcur` |
-| `NCURSES.CAP.SETAB.4` | admitted_match | `color_set`, `wcolor_set` |
-| `NCURSES.CAP.SETAF.2` | admitted_match | `color_set`, `wcolor_set` |
+| `NCURSES.COLOR.PAIR` | admitted_match | `COLOR_PAIR`, `PAIR_NUMBER`, `init_pair`, `init_pair_sp`, `pair_content`, `pair_content_sp` |
 | `NCURSES.CURS_SET` | admitted_match | `curs_set`, `curs_set_sp` |
 | `NCURSES.ERASE.NOOUTPUT` | admitted_match | `clearok` |
 | `NCURSES.OVERLAY.NOOUTPUT` | admitted_match | `copywin`, `overlay`, `overwrite` |
 | `NCURSES.REFRESH.NOOUTPUT` | admitted_match | `redrawwin`, `wredrawln` |
 | `NCURSES.SCROLL.NOOUTPUT` | admitted_match | `idcok`, `idlok`, `immedok`, `leaveok`, `scrl`, `scroll`, `scrollok`, `setscrreg`, `wscrl`, `wsetscrreg` |
 | `NCURSES.TERMATTRS` | admitted_match | `has_ic`, `has_ic_sp`, `has_il`, `has_il_sp`, `longname`, `longname_sp`, `termname`, `termname_sp` |
 | `NCURSES.TERMCAP` | admitted_divergence | `tgetent`, `tgetent_sp`, `tgetflag`, `tgetflag_sp`, `tgetnum`, `tgetnum_sp`, `tgetstr`, `tgetstr_sp`, `tgoto`, `tgoto_sp` |
-| `NCURSES.TERMINFO.ECOLOGY` | admitted_match | `restartterm`, `restartterm_sp`, `setupterm`, `tigetflag`, `tigetflag_sp`, `tigetnum`, `tigetnum_sp`, `tigetstr`, `tigetstr_sp` |
-| `NCURSES.TERMINFO.LOOKUP` | admitted_match | `tigetflag`, `tigetflag_sp`, `tigetnum`, `tigetnum_sp`, `tigetstr`, `tigetstr_sp` |
+| `NCURSES.TERMINFO.ECOLOGY` | admitted_match | `can_change_color`, `can_change_color_sp`, `has_colors`, `has_colors_sp`, `restartterm`, `restartterm_sp`, `setupterm`, `tigetflag`, `tigetflag_sp`, `tigetnum`, `tigetnum_sp`, `tigetstr`, `tigetstr_sp` |
+| `NCURSES.TERMINFO.LOOKUP` | admitted_match | `can_change_color`, `can_change_color_sp`, `has_colors`, `has_colors_sp`, `tigetflag`, `tigetflag_sp`, `tigetnum`, `tigetnum_sp`, `tigetstr`, `tigetstr_sp` |
 | `NCURSES.TOUCH.NOOUTPUT` | admitted_match | `syncok`, `touchline`, `touchwin`, `untouchwin`, `wcursyncup`, `wsyncdown`, `wsyncup`, `wtouchln` |
 | `NCURSES.TPARM` | admitted_match | `tiparm`, `tiparm_s`, `tparm`, `tparm_sp` |
 | `NCURSES.TPUTS` | admitted_match | `putp`, `putp_sp`, `tputs`, `tputs_sp` |
-| `NCURSES.WINDOW.ATTR` | admitted_match | `attr_get`, `attr_off`, `attr_on`, `attr_set`, `attroff`, `attron`, `attrset`, `chgat`, `getattrs`, `mvchgat`, `mvwchgat`, `standend`, `standout`, `wattr_get`, `wattr_off`, `wattr_on`, `wattr_set`, `wattroff`, `wattron`, `wattrset`, `wchgat`, `wstandend`, `wstandout` |
+| `NCURSES.WINDOW.ATTR` | admitted_match | `attr_get`, `attr_off`, `attr_on`, `attr_set`, `attroff`, `attron`, `attrset`, `chgat`, `color_set`, `getattrs`, `mvchgat`, `mvwchgat`, `standend`, `standout`, `wattr_get`, `wattr_off`, `wattr_on`, `wattr_set`, `wattroff`, `wattron`, `wattrset`, `wchgat`, `wcolor_set`, `wstandend`, `wstandout` |
 | `NCURSES.WINDOW.GEOMETRY` | admitted_match | `derwin`, `dupwin`, `getbegx`, `getbegy`, `getcurx`, `getcury`, `getmaxx`, `getmaxy`, `getparx`, `getpary`, `is_subwin`, `mvderwin`, `mvwin`, `newwin`, `newwin_sp`, `subwin`, `wresize` |
 | `NCURSES.WINDOW.STATE` | admitted_match | `addch`, `addnstr`, `addstr`, `border`, `box`, `delch`, `deleteln`, `echochar`, `erase`, `hline`, `inch`, `inchnstr`, `inchstr`, `innstr`, `insch`, `insdelln`, `insertln`, `insnstr`, `insstr`, `instr`, `move`, `mvaddch`, `mvaddnstr`, `mvaddstr`, `mvdelch`, `mvhline`, `mvinch`, `mvinchnstr`, `mvinchstr`, `mvinnstr`, `mvinsch`, `mvinsnstr`, `mvinsstr`, `mvinstr`, `mvvline`, `mvwaddch`, `mvwaddnstr`, `mvwaddstr`, `mvwdelch`, `mvwhline`, `mvwinch`, `mvwinchnstr`, `mvwinchstr`, `mvwinnstr`, `mvwinsch`, `mvwinsnstr`, `mvwinsstr`, `mvwinstr`, `mvwvline`, `vline`, `waddch`, `waddnstr`, `waddstr`, `wborder`, `wdelch`, `wdeleteln`, `wechochar`, `werase`, `whline`, `winch`, `winchnstr`, `winchstr`, `winnstr`, `winsch`, `winsdelln`, `winsertln`, `winsnstr`, `winsstr`, `winstr`, `wmove`, `wvline` |
 

docs/generated/port-parity-functions.md

@@ -19,7 +19,7 @@ C function's signature, return values, or window semantics -- ncurses-native is
 byte-output reconstruction, not a C API. Credit is withheld from every function
 that is neither reconstructed nor classified with evidence.
 
-**Overall: 268 / 481 C functions are resolved (55.7%). The other 213 are gaps.**
+**Overall: 284 / 481 C functions are resolved (59.0%). The other 197 are gaps.**
 
 Legend: `*` full = every function in the group reconstructed and admitted by a court · `~` partial = some behavior reconstructed with an executable court (byte/terminfo oracle) · `o` scaffold = a byte-producing stand-in exists, not yet pinned by its own court · `!` divergent = a counterpart exists but a court records a measured divergence from the in-repo oracle · `>` deferred = no immediate terminal output; the function's effect is realized later by refresh/doupdate, proven by an empty-output court · `n` n_a = no terminal-output contract (pure query or state); nothing for a byte-output reconstruction to emit · `.` none = no counterpart.
 
@@ -46,8 +46,8 @@ Legend: `*` full = every function in the group reconstructed and admitted by a c
 | Terminfo & termcap (curs_terminfo / termcap) | 33 | 33 | 0 | 100.0 |
 | Touch & sync (curs_touch) | 11 | 11 | 0 | 100.0 |
 | Window create & manage (curs_window) | 19 | 19 | 0 | 100.0 |
+| Color (curs_color) | 40 | 20 | 20 | 50.0 |
 | Screen init & teardown (curs_initscr) | 11 | 2 | 9 | 18.2 |
-| Color (curs_color) | 40 | 4 | 36 | 10.0 |
 | Add chstr (curs_addchstr) | 8 | 0 | 8 | 0.0 |
 | Input options & key handling (curs_inopts / util) | 56 | 0 | 56 | 0.0 |
 | Input: characters & strings (curs_getch / getstr / scanw) | 22 | 0 | 22 | 0.0 |
@@ -384,33 +384,19 @@ for their totals).
 - `n` `wgetparent` (n_a) — Returns the parent window pointer; a pointer query with no terminal-output contract.
 - `~` `wresize` (partial) → `window::Window::wresize` [NCURSES.WINDOW.GEOMETRY] — Resizes the window (preserving top-left content); geometry matched by the court.
 
-### Screen init & teardown (curs_initscr) — 2/11 (18.2%)
-
-- `.` `delscreen` (gap)
-- `!` `endwin` (divergent) → `term::TEARDOWN_EPILOGUE` [NCURSES.BYTE.FRAME.FULL] — Teardown epilogue constant; same divergence as initscr against the in-repo oracle.
-- `.` `endwin_sp` (gap)
-- `.` `exit_curses` (gap)
-- `!` `initscr` (divergent) → `term::INIT_PROLOGUE` [NCURSES.BYTE.FRAME.FULL] — The init prologue constant was captured from a different ncurses build; against the in-repo ncurses 6.4 pty oracle it diverges in emission order and feature extras (recorded, not matched).
-- `.` `isendwin` (gap)
-- `.` `isendwin_sp` (gap)
-- `.` `new_prescr` (gap)
-- `.` `newterm` (gap)
-- `.` `newterm_sp` (gap)
-- `.` `set_term` (gap)
-
-### Color (curs_color) — 4/40 (10.0%)
+### Color (curs_color) — 20/40 (50.0%)
 
-- `.` `COLOR_PAIR` (gap)
-- `.` `PAIR_NUMBER` (gap)
+- `~` `COLOR_PAIR` (partial) → `window::color_pair` [NCURSES.COLOR.PAIR] — COLOR_PAIR(n) = n<<8; matched to ncurses.
+- `~` `PAIR_NUMBER` (partial) → `window::pair_number` [NCURSES.COLOR.PAIR] — PAIR_NUMBER(attr) = (attr & A_COLOR) >> 8; matched to ncurses.
 - `.` `alloc_pair` (gap)
 - `.` `alloc_pair_sp` (gap)
-- `.` `assume_default_colors` (gap)
-- `.` `assume_default_colors_sp` (gap)
-- `.` `can_change_color` (gap)
-- `.` `can_change_color_sp` (gap)
+- `n` `assume_default_colors` (n_a) — Configures default (-1) colours; library state with no immediate terminal output.
+- `n` `assume_default_colors_sp` (n_a) — Configures default (-1) colours; library state with no immediate terminal output.
+- `~` `can_change_color` (partial) → `terminfo::Terminfo::can_change_color` [NCURSES.TERMINFO.LOOKUP, NCURSES.TERMINFO.ECOLOGY] — the ccc capability, derived from terminfo (tigetflag, court-matched).
+- `~` `can_change_color_sp` (partial) → `terminfo::Terminfo::can_change_color` [NCURSES.TERMINFO.LOOKUP, NCURSES.TERMINFO.ECOLOGY] — the ccc capability, derived from terminfo (tigetflag, court-matched).
 - `.` `color_content` (gap)
 - `.` `color_content_sp` (gap)
-- `~` `color_set` (partial) → `color::sgr_fg` [NCURSES.CAP.SETAF.2, NCURSES.CAP.SETAB.4] — fg/bg byte producers are pinned to setaf/setab; pair allocation state is not modeled.
+- `~` `color_set` (partial) → `window::Window::color_set` [NCURSES.WINDOW.ATTR] — Sets the active colour pair on the cell grid; matched to ncurses via winch colour bits.
 - `.` `extended_color_content` (gap)
 - `.` `extended_color_content_sp` (gap)
 - `.` `extended_pair_content` (gap)
@@ -421,23 +407,37 @@ for their totals).
 - `.` `find_pair_sp` (gap)
 - `.` `free_pair` (gap)
 - `.` `free_pair_sp` (gap)
-- `.` `has_colors` (gap)
-- `.` `has_colors_sp` (gap)
+- `~` `has_colors` (partial) → `terminfo::Terminfo::has_colors` [NCURSES.TERMINFO.LOOKUP, NCURSES.TERMINFO.ECOLOGY] — colors>0, derived from terminfo (tigetnum colors, court-matched).
+- `~` `has_colors_sp` (partial) → `terminfo::Terminfo::has_colors` [NCURSES.TERMINFO.LOOKUP, NCURSES.TERMINFO.ECOLOGY] — colors>0, derived from terminfo (tigetnum colors, court-matched).
 - `.` `init_color` (gap)
 - `.` `init_color_sp` (gap)
 - `.` `init_extended_color` (gap)
 - `.` `init_extended_color_sp` (gap)
 - `.` `init_extended_pair` (gap)
 - `.` `init_extended_pair_sp` (gap)
-- `o` `init_pair` (scaffold) → `color::sgr_fg` — No pair table; the fg/bg SGR bytes a pair would activate are produced directly.
-- `.` `init_pair_sp` (gap)
-- `.` `pair_content` (gap)
-- `.` `pair_content_sp` (gap)
-- `.` `reset_color_pairs` (gap)
-- `.` `reset_color_pairs_sp` (gap)
-- `o` `start_color` (scaffold) → `color::sgr_fg` — No color-pair allocation table; only the per-color SGR byte producers exist.
-- `.` `start_color_sp` (gap)
-- `.` `use_default_colors` (gap)
-- `.` `use_default_colors_sp` (gap)
-- `~` `wcolor_set` (partial) → `color::sgr_fg` [NCURSES.CAP.SETAF.2, NCURSES.CAP.SETAB.4] — Same setaf/setab bytes; no WINDOW model.
+- `~` `init_pair` (partial) → `color::Palette::init_pair` [NCURSES.COLOR.PAIR] — Registers a colour pair; pair_content matched to ncurses.
+- `~` `init_pair_sp` (partial) → `color::Palette::init_pair` [NCURSES.COLOR.PAIR] — Registers a colour pair; pair_content matched to ncurses.
+- `~` `pair_content` (partial) → `color::Palette::pair_content` [NCURSES.COLOR.PAIR] — Returns a pair's (fg,bg); matched to ncurses (incl. default pair 0 = 7,0).
+- `~` `pair_content_sp` (partial) → `color::Palette::pair_content` [NCURSES.COLOR.PAIR] — Returns a pair's (fg,bg); matched to ncurses (incl. default pair 0 = 7,0).
+- `n` `reset_color_pairs` (n_a) — Resets the colour-pair table; library state with no terminal output.
+- `n` `reset_color_pairs_sp` (n_a) — Resets the colour-pair table; library state with no terminal output.
+- `n` `start_color` (n_a) — Initializes the colour subsystem; no immediate terminal output.
+- `n` `start_color_sp` (n_a) — Initializes the colour subsystem; no immediate terminal output.
+- `n` `use_default_colors` (n_a) — Configures default (-1) colours; library state with no immediate terminal output.
+- `n` `use_default_colors_sp` (n_a) — Configures default (-1) colours; library state with no immediate terminal output.
+- `~` `wcolor_set` (partial) → `window::Window::color_set` [NCURSES.WINDOW.ATTR] — Sets the active colour pair on the cell grid; matched to ncurses via winch colour bits.
+
+### Screen init & teardown (curs_initscr) — 2/11 (18.2%)
+
+- `.` `delscreen` (gap)
+- `!` `endwin` (divergent) → `term::TEARDOWN_EPILOGUE` [NCURSES.BYTE.FRAME.FULL] — Teardown epilogue constant; same divergence as initscr against the in-repo oracle.
+- `.` `endwin_sp` (gap)
+- `.` `exit_curses` (gap)
+- `!` `initscr` (divergent) → `term::INIT_PROLOGUE` [NCURSES.BYTE.FRAME.FULL] — The init prologue constant was captured from a different ncurses build; against the in-repo ncurses 6.4 pty oracle it diverges in emission order and feature extras (recorded, not matched).
+- `.` `isendwin` (gap)
+- `.` `isendwin_sp` (gap)
+- `.` `new_prescr` (gap)
+- `.` `newterm` (gap)
+- `.` `newterm_sp` (gap)
+- `.` `set_term` (gap)