feat(theme-studio): palette generator and preview fidelity

Two strands land together because the generated theme-studio.html bundles every source file into one page and can't be split cleanly.

The palette generator is a preview-first panel: palette-generator-core.js plans the palette and palette-generator-ui.js draws it. Generated colors stay inspectable and tunable through the existing selector, and committing one creates a normal base column. It adds source-mode and scheme controls, a configurable accent count, and color names from color-names.json.

For preview fidelity, syntax and UI colors now resolve through the real Emacs inherit chains, so the preview matches how Emacs renders the theme. resolveSyntaxFg pins dec to ty (Emacs has no decorator face) and otherwise follows comment-delimiter to comment, doc to string, property to variable, function-call to function-name. resolveUiAttr walks mode-line-inactive to mode-line and line-number-current-line to line-number. The decorator label now reads "decorator to type" to match the type face Emacs uses for it.

Design recorded in the two theme-studio specs under docs/.

1 files changed, 9 insertions, 1 deletions

diff --git a/scripts/theme-studio/generate.py b/scripts/theme-studio/generate.py
index fbaf7dd80..aa0e829fb 100644
--- a/scripts/theme-studio/generate.py
+++ b/scripts/theme-studio/generate.py
@@ -44,12 +44,17 @@ APP_CORE_BODY=strip_exports(read_text('app-core.js'))
 # test-app-util.mjs. Its `import rl` line is stripped on inline (rl is already in
 # the page from the colormath core).
 APP_UTIL_BODY=strip_exports(read_text('app-util.js'))
+# Pure palette-generator planner and its browser UI panel, split from the shared
+# app core so generation behavior and panel wiring can evolve locally.
+PALETTE_GENERATOR_CORE_BODY=strip_exports(read_text('palette-generator-core.js'))
+PALETTE_GENERATOR_UI_BODY=strip_exports(read_text('palette-generator-ui.js'))
 # Palette panel actions and rendering. This is stateful browser code, split from
 # app.js because color-column behavior changes often and benefits from locality.
 PALETTE_ACTIONS_BODY=strip_exports(read_text('palette-actions.js'))
 # Browser hash gates, split from app.js so the application code is not buried
 # under the test harness while still shipping one self-contained HTML file.
 BROWSER_GATES_BODY=strip_exports(read_text('browser-gates.js'))
+COLOR_NAMES=read_json('color-names.json')
 ns={}
 src=read_text('samples.py')
 exec(src[:src.index('cols=')], ns)
@@ -183,7 +188,7 @@ MAP,BOLD,ITALIC_MAP=initial_maps(COLS,DEFAULTS)
 PALETTE=[[MAP['bg'],"bg","ground"],[MAP['p'],"fg","ground"]]
 CATS=[["bg","bg (ground)","Aa Bb 123"],["p","fg","other / whitespace"],["kw","keyword","class  def  if  return"],["bi","builtin","len  echo  printf"],
  ["pp","preprocessor","#include  #define"],["fnd","function · def","resolve  push"],
- ["fnc","function · call","printf  rsync  get"],["dec","decorator","@dataclass"],
+ ["fnc","function · call","printf  rsync  get"],["dec","decorator → type","@dataclass"],
  ["ty","type / class","int  str  Order  Queue"],["prop","property / field","id  name  items"],
  ["con","constant","None  nil  NULL  true"],["num","number","8080  100  -1"],
  ["str","string",'"dupre"  "fmt"'],["esc","escape","\\n  \\t"],["re","regexp","/^#[0-9a-f]+/"],
@@ -261,8 +266,11 @@ def fill_data(s):
     return (s.replace("COLORMATH_J",COLORMATH_BODY)
      .replace("APP_CORE_J",APP_CORE_BODY)
      .replace("APP_UTIL_J",APP_UTIL_BODY)
+     .replace("PALETTE_GENERATOR_CORE_J",PALETTE_GENERATOR_CORE_BODY)
+     .replace("PALETTE_GENERATOR_UI_J",PALETTE_GENERATOR_UI_BODY)
      .replace("PALETTE_ACTIONS_J",PALETTE_ACTIONS_BODY)
      .replace("BROWSER_GATES_J",BROWSER_GATES_BODY)
+     .replace("COLOR_NAMES_J",json.dumps(COLOR_NAMES))
      .replace("SAMPLES_J",json.dumps(SAMPLES))
      .replace("PALETTE_J",json.dumps(PALETTE)).replace("CATS_J",json.dumps(CATS))
      .replace("UIFACES_J",json.dumps(UI_FACES)).replace("UIMAP_J",json.dumps(UIMAP)).replace("APPS_J",json.dumps(APPS))